I have a MFJ-1917 permanently installed in Arizona. Just above each joint, I drilled a tiny hole and put the smallest screw I could get at Ace Hardware. Each section rests on the screw and keeps it from collapsing, but still allows flexing in the wind. Then, I painted it all with a nice tan color. My previous install was up 8 years before I had a failure. Current pole has been up for 2+ years.
Although I wouldn't need this project, you experience shared regarding glues is very useful for a lot of projects. I learnt a lot from your information today, nice one!
Mine too, but some of the elements are baggy at the bottom, not all... Perhaps my miscalculation on the bunjees? I'll find out when the weather improves and I can be bothered to investigate!
This is why I wasn't scared to get in on the first 50 of the 12.4 you just keep playing with your stuff and get it better and better when some people are happy with just good enough great stuff as always Callum cheers from across the pond W9US
As some one who uses poles for fishing. Two different types of poles. It's useful to note that there're external and internal poles. IE poles that each varying size section extending from the smallest section upwards internally and those that extend by joining each varying size section over each other from the exterior. Each have differing engineering advantages. Push up is my preference as each section is held tight internally by the next section and is a tight friction fit, and as each section wears a little it can still be pulled 'up' tighter and any leaning pressure on the pole is taken up 'internally' by the next larger section. A put over system, puts 'external' strain on each section at its point of contact with each reducing section, and this type is prone to splitting on the exterior walls when the pole is bent over in wind, UNLESS IT IS GUYED AT THE APPROPRIATE HEIGHTS OF THE POLE. Just saying
On one of my verticals I used glue-lined heatshink tubing on the outside of the pole-to-pole steps, about 6 inch pieces. Been up for many years without a problem. Quick and easy to do.
You can get superglue attached things apart with heat and a bit of percussive maintenance, as I have learned from a few machining channels on youtube. But I have no idea if the pole stands the kind of heat that is needed for the glue to come apart enough to get the pole to collapse again... [I've edited this comment a couple of times]
Can't be arsed to add another edit to my comment, so I'll just reply to myself... Maybe you could test that. Try and heat up the pole (with a hot air gun) and see if you can break the super glue bond without damaging the pole
I can’t comment on heat. But when I was a kid at my dads store I’d glue a half dollar coin to the floor and giggle myself silly watching people try and extract the coin. Never happened. At the end of the day I’d give it a modest wrap with a hammer it’d pop right off until the next time.
I had a 12mtr spiderpole that did break at 7mtr. I cut off the damaged parts so the two parts from one section could slide in lock. I had to shorten them to manage this. In same time I wanted a stiffer top section so I lowered the top into the next lower section. All those changes was glued with red rapid araldite. The pole is still collapsable , but for the time being it is a fixed 10mtr copy of DXcommander with 160m/80m inv.L from 8mtr hight and 4 more elements alongside the pole to make it multiband. 73's de LA1PHA
I wonder how the CA and the tube holds up after a year or two at least of being outside exposed. I can say after a year and a few months of my dx commander classic 'permament' install with self amlamanting tape covered by super33+ and a zip tie it's held up well to 50+mph winds, being rained on a ton, frozen and baking in the heat + it has the 80m ele installed so that abuses the pole a bit too, with its near constant lean or the trees tugging at the pole via the wire lol. (CT near the coast USA). Great idea!
Callum, soak the superglue cap in acetone and it will loosen the glue and you can clean it off. Put some plastic wrap over the top of the bottle while the cap is soaking.
Hello Callum! Looking for an update on how well it is holding up. I have a classic that is subjected to temps from -35 to 40c on an annual basis. I was afraid to use hose clamps in a permanent install because I was afraid the pole would crack at that point in very cold temperatures. The wind is always blowing here, 3 wind farms within 30 miles. I am using electrical tape and large zip ties, and so far, no sections have collapsed, they have shortened up, and have required pulling back out a few times. I'm hopeful that your experiment will be successful, and I can keep my pole fully extended no matter the temperature.
We have similar two part glues in the US. Often used to bond car mirrors to windshields, where the glue and accelerator both must be applied and the cure is almost instant. I think Loctite used to make several of these.
For the US buy any quality thick crazy glue and a matching accelerator, you will be fine. You can mix and match brands as they all copy the original formula as far as I can tell. I cant guarantee anything about products made in China.
Callum, great work. I've spent a life working with all kinds of these adhesives and bonding agents. Good stuff that molecular bonds to surfaces. It all depends on the strength of the factory finish to the structure of the mast. It's only as strong as that unless you sand it down. You are right about working time, but beyond an hour it's not much stronger. UV curing epoxy is brutally strong.
I made a video short which may be of interest. Basically using stair grip tape at each section. This may be useful for semi permanent mounting as well permanent. Same concept
Having played with model aircraft for so many years. There as generally three types of “super glue” fast, medium, and slow. Super glue is Cyanoacrylate we use the term “CA”. Like you have there a chemical CA kicker they dries it instantly. As you can imagine fast bonds instantly and will wick into surfaces if porous like balsa. , slow gives you time to pin, clamp, or otherwise position and is generally thought to be stronger. Slow is also used in filling gaps. They also have very short strand fiberglass almost like dust that can be mixed with those or epoxy that makes and incredible bond. BYW Acetone will dissolve CA.
Well explained. Silica fume is the commercial product we used for filler but most guys in both model and with experimental aircraft using laminates just use baking soda. It's rock hard when cured and can be machined. It even endures on propeller tips to fix cracks and chips. CA is water cured thus its use in the medical industry with the non toxic form. We use it in the trades as to rock climbers to repair damaged finger surface. Many other things I've learned in 50 years too. Some I've been credited with inventing in my industry. Love using polymers of any form.
The XYL is wondering where her nail polish remover got off to, her operator hubby out back, working on his aerials.... LOL. Thank you for the videos Callum! 73 DE KJ7WUZ
@@radiotests Milled glass fibers are very different from fumed silica. The milled glass fibers I use came from a fiberglass supply company and it looks like very dense powered sugar. When added to slow cure epoxy, the composite created is strong enough to drill and tap threads and is not brittle like CA.
Just a random thing you might like to try, foaming resin. It may add significant strength for permanent installs. They used to use it in sills of rally cars to prevent them from kinking in a smash. The kinking of hollow structures like box sections or tubes is a definite failure mode. I do appreciate that holding a nebula upside down to fill it might be impractical.... something you might try with a spare section....
I don't know if you can get on your side of the pond but the company (hobby shop) I work for recommends Bob Smith Industries IC-2000 for installing our titanium ends in carbon fiber tubes for push rods. I is used in the golf industry for putting carbon fiber shafts in titanium golf club heads. It contains carbon and a rubberizer in a heavy viscosity CA (Cyanoacrylate) adhesive.
@@DXCommanderHQ Just a note for anyone thinking of using CA (Super glue) for anything. Do Not use Acetone to clean the parts before use, the reside even after drying will prevent the CA adhesive from curing properly.
Please keep us updated on how this works. If it does work please give us the name of a glue to use in the USA. My Bran New DX Commander is in the barn waiting for the weather to break so get assembled and put in the air. I hope never to take it down after I put it up! Also I wonder if you sell the poles separately? I would like to use one for wire antenna projects.
You could try having two small holes drilled in the ends. Then set the length and put quick setting glue in the holes to lock it in place. The glue should wick into the tight area.
Dont really want permanent in case of a move; however, the plastic pipe clamps seem to be not gripping the smaller tube enough to prevent it from gradually shimmying down into the bigger tube. I think im going to pick up some metal hose clamps for the metal thread strength & the rubber tubing that seems to stick to the fiberglass better. My 12.4 slipped down at least a foot from the sections wiggling into each other between wind & the tension from the cords.
How cold does it get where you are in the UK? Another thing that's on my mind is with the tubes contracting with the cold I get it tight so it doesn't slide back down in, but then as the summer & higher temps hit (up to 100f) the tubes expand and split. Perhaps it might be wise to put another clamp on the outer tube of the joint to try to prevent that. Thank you for all your experience & expertise & I'm wondering what you've experienced with this & the cold & hot temps?
For the money you can't go far wrong with these poles. Mine has been strapped to a fence post, with no guy lines for around 4 months bent like a banana holding up an inverted-v. High winds, rain, freezing temps, sun and thing is still standing strong.
Typically one would use a polyurethane type (soft) glue to bond two hard substrates together such as fiberglass to fiberglass or carbon fiber to carbon fiber. CA glue works best on soft materials such as wood or your fingers. I will be most interested to see if this works long term. Thanks for the experimentation video.
My Classic is up without problems from early 2020 ;) Only with hose clamps ;) I repaired it after a storm who have broken the pole in the middle, but then... 3years up with no maintenance!
I used some silicon putty tape that they use on cell tower coax to encase each section, then tape over them. Then used the clamps on top of it all. Nothing has come down. I dont want it ever coming down.
A thought: A kit of glue lined heatshrink appropriate to each section size. Unless it degrades in UV I'd have thought the glue would both hold the sections and waterproof it, but with the advantage that it could be cut off if you moved house or something.
This wan my first thought. A quality glue lined heat shrink to keep the moisture out and help hold the pole sections. Might even be able to skip the CA glue faf entirely with some 4-6" hunks of shrink at each join.
Thanks Callum! I am very interested in the long term results since I'm intending my Signature 12.4 to be up forever. I have no interest in taking down once it's up, unless I want to lay the entire antenna down for ice storms and the like. Of course, I'll extend the entire mast a few times before I use the glue. And I will go with the sealing tape and plastic hose clamps to double/triple seal eveything together. If it's not over-engineered than it's meant to fail.
My concern, living the the US Upper Midwest, is the impact of both very cold temperatures (-20F to -30F) and moderate long duration wind stress (20-30 MPH) for several days. Certain plastics and glues can get very brittle in that kind of extreme.
Indeed they can. Sheer force (with compression though) is very stable. Mine works and we've had 40 degrees C and peaked about 11 degrees below freewzing. All in centigrade.. I can't get my head around F..! :)
From the looks of it, you could use something more substantial as a spreader. Would a silicone spatula be better for spreading a thinner layer of jell? Once it cures will it just peal off of the silicone?
Hi! In my experience, when superglue or CA glue flexes, the bond breaks. When you want a high strength bond with fiberglass, you should use the same product used when it was made. If you are unsure of what the original product was, then epoxy for fiberglass should be used.
@@DXCommanderHQ currently got your 10m classic up with a 40m efhw in a inverted L.. I have taking it with my on a couple of SOTA's but like the idea of the smaller pole. Great work you are doing. Hope to catch you on the air again. Missed your stream today by about 10 mins. Oh might have ago at doing my first video this weekend 😬 Motters M7TRS 73 👍🏻
Looks good. I had been thinking of fibreglass resin and a wrap of fibreglass tape externally but your way looks a lot easier ! I fibreglassed a couple of reinforcement sections on a squid pole to strengthen it right where I mount it; worked well. Perhaps try a small paintbrush instead of the cable tie, I use a sacrificial paint brush for fibreglassing and you can get the resin on quickly and evenly.
I used the same type of system that is used to tie eyes to fishing rods for the top few sections of my pole. I just used a much heavier waxed twine (the waxed twine that is used for sewing leather work). After doing the binding over the sections where rods meet, I further rub the twine with beeswax and heat with a lighter to melt beeswax into twine to create a watertight seal. I use beeswax for a lot of water sealing applications. Yes, might be ancient technology but I still find it effective 🙂
A better idea for a permanently extended fiberglass mast the will not collapse or bend in the wind, is extending the mast fully. Then getting a can or two of "foam in a can" from your hardware store. This is used for filling in gaps in walls of buildings etc. Spray the foam inside until it come out the top end. It sets hard and quite quickly. Now you have a mast that will not collapse or bend, and does not change the weight much - foam is light
Have been thinking about something like this but didn't dare to. Maybe, one day I'll just do it. The pole here is permanent (and the top section did lower a little. Want to rebuild it as an original 4/6/10-40, omitting 80 as I have a different solution for that. I'll use the non-80 as listening as it won't pick up as much hash on 60/80/160 (tried that), but maybe I can add 60 instead of 80. So much options to choose from :)
Wrap your finger with waxed paper or cling wrap to spread crazy glue. The working times of slow cure glue that I have used in the past building Radio Control aircraft was 1.5-2 minutes. 24 hour cure is crazy. Once you hit it with the activation spray it sets instantly like a flash freeze. The slow cure is often the thicker gel type and fast set is usually a thin consistency. Things may have changed. I have never used 24 hour slow cure glue.Store crazy glue in an airtight container IN THE REFRIGERATOR. It lasts much longer and maintains its properties much longer this way.
I have often wondered about Super Glue but always seem to glue my fingers together. Slow set seems a good idea. I also think the recommendation for taping the joints is good. Imagine some water getting in then freezing. Suppose that is the same for any installation though. Hope this works out. Be a good set up for the "new" self supporting pole?
If someone breaks a mast and cannot buy a replacement section they can sand the salvageable sections lower exterior to scuff off the gel coat, get a bit of fiberglass tape from the drywall section of the hardware store, superglue the fiberglass to the bottom of the salvaged section Go one wrap at a time because if you add too much fiberglass in one pass it will be very difficult to sand off, if this happens you might be better off taking a hacksaw to the section to remove the section you screwed up and starting anew. Use accelerator to fix it in place. Check the fit and add material by repeating the above steps or sand down the newly created widened base of that salvaged section after testing the fit to create the correct diameter, retest and when satisfied with the fit so that it will not slip out of the lower section when extending the mast. Salvage complete.I have a broken Spiderbeam mast, they dont sell replacement sections in the US only Europe. I must be honest, I did not think of this method until I started watching what Callum was up to and merely expounded upon his idea to create a new one. My wife was trying to toss the broken mast in the trash the other day and I stopped her, a good thing that I did. I just needed a catalyst to spark an idea...Now I might just try this later this week. I'm certain it will work and is better than tossing an otherwise serviceable mast in the trash.Everything has gotten insanely expensive here no thanks to Joe Biden's crappy economic policies. The man could not be a better saboteur of the USA if he was a Russian collaborator, funny that's what he claims the other guy to be. I always look at what someone does, not what they say to figure out what side of the plate they are batting from...
I think west system epoxy 205 + 206 hardener ( slow one or even 209 which is extremely slow) would work better. I'm old aeromodelling guy and would youse superglue aka CA only for repairing the model on the field ( if scotch tape out of reach, of course) .
Only thing I have found that non nonsense adhesives is that they don’t like water and breaks down fairly quickly. I used it on some cable ties I had a few fail where the zipper goes through. . I put some of the Bob Smith Industries (BSI) “slow cure” and that been out in all weathers since Dec 21 and not failed. There is a UK website for them as well. Great adhesives and right price. M0ONM
Years ago I used to build motor homes for the tourist market. We had brand new Toyota hiace vans come in and we would plasma cut the roof off them and fit a fibreglass bubble roof on them. We used a stuff designed by NASA years ago called Sicaflex. Only took a couple hrs to set but when it cured you could lift the entire vehicle off the ground by the roof……. Immensely strong stuff. The only way to get the roof off would e to cut it off. Check out if ya want to have a telescopic pole to never come down. Cheers mate 👍🇦🇺🥃
Amazing.. It *might* have too much body.. Just been reading up on it. We have found some other stuff too.. IC-2000 by Bob Smith Industries.. I'm trying that next. PS - The one we tested is still up in the field quite happily..
@@DXCommanderHQ well that’s good news old cock. The sicaflex has a texture of silicone…… god awful stuff if ya get it on your clothes! Believe me. But bonds harder than shit to a blanket!!! One question old mate. The Dx 50 wire…. What’s the power rating for that ? As you said it was designed for uk military. Thanks mate. 👍🇦🇺🥃
So I can't break the seal on the original superglued telescopic mast.. Tried smashing it all around today. Appears solid. I have some IC-2000 and want to try that next too.
@@DXCommanderHQ I have this mental picture of you running around the workshop swingen this bloody thing all over the place like a crazy bastard…… 😂🤪. Lol
HCL clamps? I bought some Jubilee clips for an aerial mast from a shop and they were no good, they stripped the thread off, made in Korea I think. Buy proper Jubille clips or maybe HCL but I don't know HCL. G4GHB.
Interesting... I would think the glue will crack and lose its bond after a while under the influence of the wind bending the pole and heat/cold. BTW I use UV proof liquid rubber alot nowadays if I want things to be weatherproof. You could even use masking tape if you want it to look nice. Tip: you can get really high quality versions at marine shops for less money than what they sell at radio amateur shops.
If you get bored, try taking a cotton shoe lace or cotton twine, and liberally soaking a bit of it with crazy glue. The result will probably shock you. Best done in an empty room, or outdoors over pavement or gravel.
I am sure someone in the comments has already said, if not, acetone will break down CA-which is handy to know when you glue your fingers together like me 😉
Thin bead of rtv........secures the pole and seals the gap from water........i actually put some in the pole before the final seating and then a bead on the gap. In south Florida and it has been through torrential rains and two hurricanes.......
Super glue isn't waterproof. I have 2 10m poles as masts in my garden glued with fiberglass finishing resin. No loss in length and been up 6 years now. I think there is more chance of the fiberglass of the pole failing from UV.
Or just use WEST Epoxy which has a slow cure time (several hours depending on temperature), has a relatively thin/low viscosity, is waterproof and is not brittle like cyanoacrylate adhesives, aka "superglue." Using CA with the accelerator on radio controlled airplanes over the years has taught me that the accelerator makes CA even more brittle. WEST Epoxy was developed for wooden boat building and will retain flexibility so it can flex with the pole.
Poles are fiber glass right? Why not use epoxy.... I used to work in a aircraft kit facility, epoxy bond will be much more stable than super glue. Just need to expose the fiber which it looks like it already is. Wipe with acetone or even just rubbing alcohol, then basically do the same thing you did with the glue
@@DXCommanderHQ Zip ties cost me a lot of money! Toothpicks cost much less than zip ties. Looks like we both use what cost less for us. A stick from the backyard would free, but may need to be wiped off of dirt first. 73
I definitely won't do that-too much temptation to spread the glue with a finger. It would go wild If I liked to scratch that part of my back that does not have a noble name.
@@DXCommanderHQ yes I believe all will work and a little heat from lowest power on a heat gun. I was also thinking on permanent installation 5 min thin epoxy could also work, but possibly sacrifice a few more mm of height
Nice, I'm going to play devil's advocate and predict the superglue even the thick slow dry is brittle and over time with break away from the fiberglass and start to fail. Hopefully the joint is tight enought that it almost becomes an extension of the figerglass and therefore flexible, and proves me wrong. Great project Calum! You won't know till you try. de ki7cia
I have a MFJ-1917 permanently installed in Arizona. Just above each joint, I drilled a tiny hole and put the smallest screw I could get at Ace Hardware. Each section rests on the screw and keeps it from collapsing, but still allows flexing in the wind. Then, I painted it all with a nice tan color. My previous install was up 8 years before I had a failure. Current pole has been up for 2+ years.
Although I wouldn't need this project, you experience shared regarding glues is very useful for a lot of projects. I learnt a lot from your information today, nice one!
Great!
Great video Cal. My DX Commander (using the original tape, clamps and rubber tube has been up two years so far - perfect it still is). Mark, 2E0MSR
Mine too, but some of the elements are baggy at the bottom, not all... Perhaps my miscalculation on the bunjees? I'll find out when the weather improves and I can be bothered to investigate!
@@SteveBrace I have done a couple of adjustments i admit, but never had total collapse
Good stuff!
This is why I wasn't scared to get in on the first 50 of the 12.4 you just keep playing with your stuff and get it better and better when some people are happy with just good enough great stuff as always Callum cheers from across the pond W9US
Nice one Ed.
As some one who uses poles for fishing. Two different types of poles. It's useful to note that there're external and internal poles. IE poles that each varying size section extending from the smallest section upwards internally and those that extend by joining each varying size section over each other from the exterior. Each have differing engineering advantages. Push up is my preference as each section is held tight internally by the next section and is a tight friction fit, and as each section wears a little it can still be pulled 'up' tighter and any leaning pressure on the pole is taken up 'internally' by the next larger section. A put over system, puts 'external' strain on each section at its point of contact with each reducing section, and this type is prone to splitting on the exterior walls when the pole is bent over in wind, UNLESS IT IS GUYED AT THE APPROPRIATE HEIGHTS OF THE POLE. Just saying
On one of my verticals I used glue-lined heatshink tubing on the outside of the pole-to-pole steps, about 6 inch pieces. Been up for many years without a problem. Quick and easy to do.
Good idea
You can get superglue attached things apart with heat and a bit of percussive maintenance, as I have learned from a few machining channels on youtube. But I have no idea if the pole stands the kind of heat that is needed for the glue to come apart enough to get the pole to collapse again... [I've edited this comment a couple of times]
Can't be arsed to add another edit to my comment, so I'll just reply to myself... Maybe you could test that. Try and heat up the pole (with a hot air gun) and see if you can break the super glue bond without damaging the pole
@@Ran-tan-tan I was thinking the same "Clickspring" uses Superglue a lot to temporarily put items in a lathe or similar.
@@g0fvt Exactly what machining channel I was thinking of!
I can’t comment on heat. But when I was a kid at my dads store I’d glue a half dollar coin to the floor and giggle myself silly watching people try and extract the coin. Never happened. At the end of the day I’d give it a modest wrap with a hammer it’d pop right off until the next time.
I had a 12mtr spiderpole that did break at 7mtr. I cut off the damaged parts so the two parts from one section could slide in lock. I had to shorten them to manage this. In same time I wanted a stiffer top section so I lowered the top into the next lower section. All those changes was glued with red rapid araldite. The pole is still collapsable , but for the time being it is a fixed 10mtr copy of DXcommander with 160m/80m inv.L from 8mtr hight and 4 more elements alongside the pole to make it multiband. 73's de LA1PHA
Glad I'm not the only one who makes old man noises when getting a full extension on the sections.
👍 ha ha, that always helps to mask the pain of worn out finger and elbow joints
I wonder how the CA and the tube holds up after a year or two at least of being outside exposed. I can say after a year and a few months of my dx commander classic 'permament' install with self amlamanting tape covered by super33+ and a zip tie it's held up well to 50+mph winds, being rained on a ton, frozen and baking in the heat + it has the 80m ele installed so that abuses the pole a bit too, with its near constant lean or the trees tugging at the pole via the wire lol. (CT near the coast USA). Great idea!
Callum, soak the superglue cap in acetone and it will loosen the glue and you can clean it off. Put some plastic wrap over the top of the bottle while the cap is soaking.
Hello Callum! Looking for an update on how well it is holding up.
I have a classic that is subjected to temps from -35 to 40c on an annual basis. I was afraid to use hose clamps in a permanent install because I was afraid the pole would crack at that point in very cold temperatures. The wind is always blowing here, 3 wind farms within 30 miles. I am using electrical tape and large zip ties, and so far, no sections have collapsed, they have shortened up, and have required pulling back out a few times. I'm hopeful that your experiment will be successful, and I can keep my pole fully extended no matter the temperature.
Seems to be doing OK.. There are other "rubberised" superglues but for the small amount we have on this, seems to be fine..
We have similar two part glues in the US. Often used to bond car mirrors to windshields, where the glue and accelerator both must be applied and the cure is almost instant. I think Loctite used to make several of these.
For the US buy any quality thick crazy glue and a matching accelerator, you will be fine. You can mix and match brands as they all copy the original formula as far as I can tell.
I cant guarantee anything about products made in China.
I drill two very small holes either side of an extended section pole and push a thin welding rod through - section can’t drop back down
OK, you are lucky but instead of spreading the force around the whole diameter, you are concentrating the force in a 3m hole.. Be careful :)
@@DXCommanderHQ true
Callum, great work. I've spent a life working with all kinds of these adhesives and bonding agents. Good stuff that molecular bonds to surfaces. It all depends on the strength of the factory finish to the structure of the mast. It's only as strong as that unless you sand it down.
You are right about working time, but beyond an hour it's not much stronger. UV curing epoxy is brutally strong.
Awesome, thank you!
I made a video short which may be of interest. Basically using stair grip tape at each section. This may be useful for semi permanent mounting as well permanent. Same concept
Having played with model aircraft for so many years. There as generally three types of “super glue” fast, medium, and slow. Super glue is Cyanoacrylate we use the term “CA”. Like you have there a chemical CA kicker they dries it instantly. As you can imagine fast bonds instantly and will wick into surfaces if porous like balsa. , slow gives you time to pin, clamp, or otherwise position and is generally thought to be stronger. Slow is also used in filling gaps. They also have very short strand fiberglass almost like dust that can be mixed with those or epoxy that makes and incredible bond. BYW Acetone will dissolve CA.
Ah! Interesting!
Well explained. Silica fume is the commercial product we used for filler but most guys in both model and with experimental aircraft using laminates just use baking soda. It's rock hard when cured and can be machined. It even endures on propeller tips to fix cracks and chips.
CA is water cured thus its use in the medical industry with the non toxic form. We use it in the trades as to rock climbers to repair damaged finger surface. Many other things I've learned in 50 years too. Some I've been credited with inventing in my industry. Love using polymers of any form.
The XYL is wondering where her nail polish remover got off to, her operator hubby out back, working on his aerials.... LOL.
Thank you for the videos Callum!
73 DE KJ7WUZ
@@DavidMitchell79 hahahaha. More truth than fiction there.
@@radiotests Milled glass fibers are very different from fumed silica. The milled glass fibers I use came from a fiberglass supply company and it looks like very dense powered sugar. When added to slow cure epoxy, the composite created is strong enough to drill and tap threads and is not brittle like CA.
If Callum gets bonded to the antenna, how will the impedance and takeoff angle be affected?
Now THAT is Bananas!
Just as in life as in Ham radio the excitement is in the Journey. Its no fun if you cannot experiment! Cheers to you 73!
Well said!
Just a random thing you might like to try, foaming resin. It may add significant strength for permanent installs. They used to use it in sills of rally cars to prevent them from kinking in a smash. The kinking of hollow structures like box sections or tubes is a definite failure mode. I do appreciate that holding a nebula upside down to fill it might be impractical.... something you might try with a spare section....
OK, honestly a good idea BUT my friend Barry M0DGQ tried this.. The foam snapped in several places making the whole project redundant.. Oh well :)
@@DXCommanderHQ thanks for the feedback.
I don't know if you can get on your side of the pond but the company (hobby shop) I work for recommends Bob Smith Industries IC-2000 for installing our titanium ends in carbon fiber tubes for push rods. I is used in the golf industry for putting carbon fiber shafts in titanium golf club heads. It contains carbon and a rubberizer in a heavy viscosity CA (Cyanoacrylate) adhesive.
Very interesting.. I have just nought some - I will test it out!
@@DXCommanderHQ Just a note for anyone thinking of using CA (Super glue) for anything. Do Not use Acetone to clean the parts before use, the reside even after drying will prevent the CA adhesive from curing properly.
Really enjoy your vids. Great ideas. Heard you 10 meters a few weeks ago. Take care. KO4NF, Mike.
Thanks - hook up sometime!
Please keep us updated on how this works. If it does work please give us the name of a glue to use in the USA. My Bran New DX Commander is in the barn waiting for the weather to break so get assembled and put in the air. I hope never to take it down after I put it up!
Also I wonder if you sell the poles separately? I would like to use one for wire antenna projects.
Yes we do poles individually.. Easy :)
You could try having two small holes drilled in the ends. Then set the length and put quick setting glue in the holes to lock it in place. The glue should wick into the tight area.
That is also an idea!
Dont really want permanent in case of a move; however, the plastic pipe clamps seem to be not gripping the smaller tube enough to prevent it from gradually shimmying down into the bigger tube. I think im going to pick up some metal hose clamps for the metal thread strength & the rubber tubing that seems to stick to the fiberglass better. My 12.4 slipped down at least a foot from the sections wiggling into each other between wind & the tension from the cords.
Oh! So you can do two things.. 1) really extend the tube as tough as you can and 2) tighten the clamps.
How cold does it get where you are in the UK? Another thing that's on my mind is with the tubes contracting with the cold I get it tight so it doesn't slide back down in, but then as the summer & higher temps hit (up to 100f) the tubes expand and split. Perhaps it might be wise to put another clamp on the outer tube of the joint to try to prevent that. Thank you for all your experience & expertise & I'm wondering what you've experienced with this & the cold & hot temps?
Does the manufacturer have a recommended adhesive? Something that would actually bond the two surfaces chemically, like PVC pipe adhesive?
I asked the factory.. Actually, they suggested this.
@@DXCommanderHQ Interesting, thanks for the reply.
I heatshrink wrapped mine on the joins 1 year later it still up and its got the 80M leg back to the house so it is under constant stress.
Good job Callum!.
For the money you can't go far wrong with these poles. Mine has been strapped to a fence post, with no guy lines for around 4 months bent like a banana holding up an inverted-v. High winds, rain, freezing temps, sun and thing is still standing strong.
I extended all of the segments FIRST and THEN applied a bead of JBWeld on each joint. Requires a hacksaw to collapse the mast now
Tried that once and it gave way.. But hey! Maybe I was using the wrong stuff!
Typically one would use a polyurethane type (soft) glue to bond two hard substrates together such as fiberglass to fiberglass or carbon fiber to carbon fiber. CA glue works best on soft materials such as wood or your fingers. I will be most interested to see if this works long term. Thanks for the experimentation video.
Great point!
My Classic is up without problems from early 2020 ;) Only with hose clamps ;) I repaired it after a storm who have broken the pole in the middle, but then... 3years up with no maintenance!
Wow. Amazing..
how do i get a DX commander here in Canada, Thanks..
Either direct from us (we ship daily) or from DX Engineering.
I used some silicon putty tape that they use on cell tower coax to encase each section, then tape over them. Then used the clamps on top of it all. Nothing has come down. I dont want it ever coming down.
The mastic strip I have says it is UV resistant. I haven't used it on the sections, only on the coax connections.
A thought: A kit of glue lined heatshrink appropriate to each section size. Unless it degrades in UV I'd have thought the glue would both hold the sections and waterproof it, but with the advantage that it could be cut off if you moved house or something.
Maybe a hybrid, glue most of the sections but heatshrink 1/3 and 2/3 so you could break it down?
@@g4lmn-ron That's a better idea. It just needs to be small enough to stow in the shed or put on a roof rack.
This wan my first thought. A quality glue lined heat shrink to keep the moisture out and help hold the pole sections. Might even be able to skip the CA glue faf entirely with some 4-6" hunks of shrink at each join.
I bought some.. In the sizes suitable, it gets expensive!
Thanks Callum! I am very interested in the long term results since I'm intending my Signature 12.4 to be up forever. I have no interest in taking down once it's up, unless I want to lay the entire antenna down for ice storms and the like. Of course, I'll extend the entire mast a few times before I use the glue. And I will go with the sealing tape and plastic hose clamps to double/triple seal eveything together. If it's not over-engineered than it's meant to fail.
Yes, I'm goiong to try Signature 12.4 next actually...
My concern, living the the US Upper Midwest, is the impact of both very cold temperatures (-20F to -30F) and moderate long duration wind stress (20-30 MPH) for several days. Certain plastics and glues can get very brittle in that kind of extreme.
Indeed they can. Sheer force (with compression though) is very stable. Mine works and we've had 40 degrees C and peaked about 11 degrees below freewzing. All in centigrade.. I can't get my head around F..! :)
From the looks of it, you could use something more substantial as a spreader. Would a silicone spatula be better for spreading a thinner layer of jell? Once it cures will it just peal off of the silicone?
Erm.. Cable ties work just fine for this. Cheap too..
@@DXCommanderHQ That they are! I use them for mixing epoxy or as a cocktail stirrer if they're long enough!😁
Now for snow and water, is there a recommended way to raise the antenna? Mine swims on every thaw cycle or good rain.
Erm.. I don't understand.. Drop me an email!
Hi! In my experience, when superglue or CA glue flexes, the bond breaks.
When you want a high strength bond with fiberglass, you should use the same product used when it was made.
If you are unsure of what the original product was, then epoxy for fiberglass should be used.
Indeed.
Great video Callum. Not too sure I would want to do this rather you than me mate. I am still saving for the 10m portable dx pole.
Motters M7TRS 73 👍🏻
Fair enough!
@@DXCommanderHQ currently got your 10m classic up with a 40m efhw in a inverted L.. I have taking it with my on a couple of SOTA's but like the idea of the smaller pole. Great work you are doing. Hope to catch you on the air again. Missed your stream today by about 10 mins.
Oh might have ago at doing my first video this weekend 😬
Motters M7TRS 73 👍🏻
Jubilee Glue ???
More surface area covered - better resistance to shearing force. Tape for water resistance is a good idea..
Thank you, Callum. Let us know how the experiment comes out. N0QFT
Looks good. I had been thinking of fibreglass resin and a wrap of fibreglass tape externally but your way looks a lot easier ! I fibreglassed a couple of reinforcement sections on a squid pole to strengthen it right where I mount it; worked well.
Perhaps try a small paintbrush instead of the cable tie, I use a sacrificial paint brush for fibreglassing and you can get the resin on quickly and evenly.
Thanks 👍
I used the same type of system that is used to tie eyes to fishing rods for the top few sections of my pole. I just used a much heavier waxed twine (the waxed twine that is used for sewing leather work). After doing the binding over the sections where rods meet, I further rub the twine with beeswax and heat with a lighter to melt beeswax into twine to create a watertight seal. I use beeswax for a lot of water sealing applications. Yes, might be ancient technology but I still find it effective 🙂
Great tip!
A better idea for a permanently extended fiberglass mast the will not collapse or bend in the wind, is extending the mast fully. Then getting a can or two of "foam in a can" from your hardware store. This is used for filling in gaps in walls of buildings etc. Spray the foam inside until it come out the top end. It sets hard and quite quickly. Now you have a mast that will not collapse or bend, and does not change the weight much - foam is light
OK, I know someone who did this and the foam cracked inside .. failed.. and it all became a worthless deal.. Good idea though!
Always advancing and improving.👍
I try!
Cal! Cal!... A disposable brush maybe?
Have been thinking about something like this but didn't dare to.
Maybe, one day I'll just do it. The pole here is permanent (and the top section did lower a little. Want to rebuild it as an original 4/6/10-40, omitting 80 as I have a different solution for that.
I'll use the non-80 as listening as it won't pick up as much hash on 60/80/160 (tried that), but maybe I can add 60 instead of 80. So much options to choose from :)
Yes OK Anton.. Go on, try it :)
Nice job bro! I bet it works out great! I thought I was the only one who used cable ties other than what they were intended for...ha ha ...73
Thanks 👍
Wrap your finger with waxed paper or cling wrap to spread crazy glue. The working times of slow cure glue that I have used in the past building Radio Control aircraft was 1.5-2 minutes. 24 hour cure is crazy. Once you hit it with the activation spray it sets instantly like a flash freeze. The slow cure is often the thicker gel type and fast set is usually a thin consistency. Things may have changed. I have never used 24 hour slow cure glue.Store crazy glue in an airtight container IN THE REFRIGERATOR. It lasts much longer and maintains its properties much longer this way.
OK, so this stuff has about a 10 second cure time with the spray. Is gard in 10 minutes without and crispy hard after 24 hours (without spray)
I have often wondered about Super Glue but always seem to glue my fingers together. Slow set seems a good idea. I also think the recommendation for taping the joints is good. Imagine some water getting in then freezing. Suppose that is the same for any installation though. Hope this works out. Be a good set up for the "new" self supporting pole?
Chris, some folks are over-thinking this.. It'll work just fine.
I am sure it will Cal. And of course you are testing it out for everyone anyway
Cal, How about a pneumatic telescoping pole
That would be fun!
If someone breaks a mast and cannot buy a replacement section they can sand the salvageable sections lower exterior to scuff off the gel coat, get a bit of fiberglass tape from the drywall section of the hardware store, superglue the fiberglass to the bottom of the salvaged section Go one wrap at a time because if you add too much fiberglass in one pass it will be very difficult to sand off, if this happens you might be better off taking a hacksaw to the section to remove the section you screwed up and starting anew. Use accelerator to fix it in place. Check the fit and add material by repeating the above steps or sand down the newly created widened base of that salvaged section after testing the fit to create the correct diameter, retest and when satisfied with the fit so that it will not slip out of the lower section when extending the mast. Salvage complete.I have a broken Spiderbeam mast, they dont sell replacement sections in the US only Europe. I must be honest, I did not think of this method until I started watching what Callum was up to and merely expounded upon his idea to create a new one. My wife was trying to toss the broken mast in the trash the other day and I stopped her, a good thing that I did. I just needed a catalyst to spark an idea...Now I might just try this later this week. I'm certain it will work and is better than tossing an otherwise serviceable mast in the trash.Everything has gotten insanely expensive here no thanks to Joe Biden's crappy economic policies. The man could not be a better saboteur of the USA if he was a Russian collaborator, funny that's what he claims the other guy to be. I always look at what someone does, not what they say to figure out what side of the plate they are batting from...
Ah cool idea!
I think west system epoxy 205 + 206 hardener ( slow one or even 209 which is extremely slow) would work better. I'm old aeromodelling guy and would youse superglue aka CA only for repairing the model on the field ( if scotch tape out of reach, of course) .
Yes.. Well, mine is still up in the field.. I think there's no forces other than "down", we might be lucky!
Yeah Callum let us know how the supper glue holds up long term. Great video. 73 Joe
Yes! Need a big storm and some rain now.
Only thing I have found that non nonsense adhesives is that they don’t like water and breaks down fairly quickly. I used it on some cable ties I had a few fail where the zipper goes through. . I put some of the Bob Smith Industries (BSI) “slow cure” and that been out in all weathers since Dec 21 and not failed. There is a UK website for them as well. Great adhesives and right price. M0ONM
Yes, once cured this isn't so much flexible (I know) but there isn't much flex where the join is..
The glue sounds like a Super Glue I found for plastics that Super glue usually doesn't work with. I use wood coffee stirs.
Great tip!
Years ago I used to build motor homes for the tourist market. We had brand new Toyota hiace vans come in and we would plasma cut the roof off them and fit a fibreglass bubble roof on them. We used a stuff designed by NASA years ago called Sicaflex. Only took a couple hrs to set but when it cured you could lift the entire vehicle off the ground by the roof……. Immensely strong stuff. The only way to get the roof off would e to cut it off. Check out if ya want to have a telescopic pole to never come down. Cheers mate 👍🇦🇺🥃
Amazing.. It *might* have too much body.. Just been reading up on it. We have found some other stuff too.. IC-2000 by Bob Smith Industries.. I'm trying that next. PS - The one we tested is still up in the field quite happily..
@@DXCommanderHQ well that’s good news old cock. The sicaflex has a texture of silicone…… god awful stuff if ya get it on your clothes! Believe me. But bonds harder than shit to a blanket!!! One question old mate. The Dx 50 wire…. What’s the power rating for that ? As you said it was designed for uk military. Thanks mate. 👍🇦🇺🥃
So I can't break the seal on the original superglued telescopic mast.. Tried smashing it all around today. Appears solid. I have some IC-2000 and want to try that next too.
@@DXCommanderHQ I have this mental picture of you running around the workshop swingen this bloody thing all over the place like a crazy bastard…… 😂🤪. Lol
I use araldite to do this and the pole is still up through all weathers 365 days a year since 2019.
Right.. My only complaint was when I tried it, it failed on me! LOL!
HCL clamps? I bought some Jubilee clips for an aerial mast from a shop and they were no good, they stripped the thread off, made in Korea I think. Buy proper Jubille clips or maybe HCL but I don't know HCL.
G4GHB.
Stainless hose clamps are good. We used them for years and sourced them from a motor racing supplier.
@@DXCommanderHQ O.K. I've never heard of that make.
Interesting... I would think the glue will crack and lose its bond after a while under the influence of the wind bending the pole and heat/cold. BTW I use UV proof liquid rubber alot nowadays if I want things to be weatherproof. You could even use masking tape if you want it to look nice.
Tip: you can get really high quality versions at marine shops for less money than what they sell at radio amateur shops.
We will find out! I have more confidence, knowing that the inside of that pole will look like with the glue spread around so tightly :)
Just for a sec at the start of the video - I thought you was going to try that idea on a 18m pole! lol..
I might!!
@@DXCommanderHQ Good lad!! 👍
If you get bored, try taking a cotton shoe lace or cotton twine, and liberally soaking a bit of it with crazy glue. The result will probably shock you.
Best done in an empty room, or outdoors over pavement or gravel.
I am sure someone in the comments has already said, if not, acetone will break down CA-which is handy to know when you glue your fingers together like me 😉
HAHA!
i would use an "acid brush" for applying it
Thin bead of rtv........secures the pole and seals the gap from water........i actually put some in the pole before the final seating and then a bead on the gap. In south Florida and it has been through torrential rains and two hurricanes.......
Super glue isn't waterproof. I have 2 10m poles as masts in my garden glued with fiberglass finishing resin. No loss in length and been up 6 years now. I think there is more chance of the fiberglass of the pole failing from UV.
Nice
I convert my failing telescoping poles into "forever" poles by roughing up the area and applying fibreglass gauze and resin.
Or just use WEST Epoxy which has a slow cure time (several hours depending on temperature), has a relatively thin/low viscosity, is waterproof and is not brittle like cyanoacrylate adhesives, aka "superglue." Using CA with the accelerator on radio controlled airplanes over the years has taught me that the accelerator makes CA even more brittle. WEST Epoxy was developed for wooden boat building and will retain flexibility so it can flex with the pole.
WEST Epoxy.. OK, copied.
Might have to try this on my 12.4 at the QTH.
Jobs like spreading that glue are what I keep all the old toothbrushes for!
Oh yes!
😂😂😂 Callum the super goo salesman.
I wish!
I think I'd use a disposible brush to smear the glue
When I have a ton of half used cable ties? Nah!
@@DXCommanderHQ 😂
Poles are fiber glass right? Why not use epoxy.... I used to work in a aircraft kit facility, epoxy bond will be much more stable than super glue. Just need to expose the fiber which it looks like it already is. Wipe with acetone or even just rubbing alcohol, then basically do the same thing you did with the glue
You would need it extremley runny to make sure you get full extension. ANd cheap superglue is.. well.. cheap! :)
You know those zip ties could hold a fabulous bundle of disposable glue brushes. Just sayin' 😂
I would use a toothpick or a glue brush to put it on with.
Used zip ties are free :)
@@DXCommanderHQ Zip ties cost me a lot of money! Toothpicks cost much less than zip ties. Looks like we both use what cost less for us. A stick from the backyard would free, but may need to be wiped off of dirt first. 73
Yeah, we have a TON of cut-up cable ties that normally we throw away.. I use them.
My luck I'd get my face stuck to the pole. Scott KF0HRF
HAHAHA
Looks expensive. My guess whoever is building one of these isn't running a Chinese special on the others end😁
I definitely won't do that-too much temptation to spread the glue with a finger. It would go wild If I liked to scratch that part of my back that does not have a noble name.
Get some acid brushes there cheap
Sum CA cyanoacrylate glues dissolved with mineral spirits or sum Rc hobbies ca makers sell Debond or uncure
ANd nail varnish remover stuff.. Acetone?
@@DXCommanderHQ yes I believe all will work and a little heat from lowest power on a heat gun. I was also thinking on permanent installation 5 min thin epoxy could also work, but possibly sacrifice a few more mm of height
Lol 😆
BOB THE BUTCHER
So you are Bob the Butcher..? Welcome Bob. Nothing wrong with a butcher.
I use shrink tubing with glue Krimpkous met lijm 73 PD4HW
Nice, I'm going to play devil's advocate and predict the superglue even the thick slow dry is brittle and over time with break away from the fiberglass and start to fail. Hopefully the joint is tight enought that it almost becomes an extension of the figerglass and therefore flexible, and proves me wrong.
Great project Calum!
You won't know till you try.
de ki7cia
Ah.. So what you don't know is that I had one on test before the winter :)
@@DXCommanderHQ Awesome! excited to see the results.