Carbon Felt vs Fiberglass Insulation
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- Опубліковано 1 жов 2024
- Since I've been using carbon felt/fiber in my burners I've been getting lots of people asking my why I use expensive carbon felt/fiber instead of cheaper fiberglass insulation.
In this video I try to explain why I use carbon felt/fiber.
I couldn't find much on the melting point of fiberglass except something I found in one engineering book where it said that the high temp range was 1000°F (540°C). When you figure that temperatures of alcohol burners are anywhere from 1112-1652°F (600-900°C) the burners I've made should be able to melt fiberglass. Least ways in my burners it did melt the fiberglass after a couple of uses. Then I had to turn over or replace the fiberglass.
Here is the info on carbon felt/fiber and where I buy it:
CyberWeld
Tillman Welding Blanket - Thermofelt 615
Code: 615B
store.cyberweld...
Info borrowed from CyberWeld site:
Tillman Welding Blanket - Thermofelt 615
Soft, thick, affordable welding blanket provides protection up to 3000F. 16 oz. Black Thermofelt material is non-flammable, non-melting, non-shrinking and scratch free!
No heat transfer takes place between the blanket and the protected surface, making it ideal for auto body and other thin sheet metal surfaces.
With a working temperature of 1800F, this blanket is a safety must for the auto body mechanic or the home hobbyist. It is available in 2 sizes, either 3' X 3' or 6' X 6'.
Hope this helps to explain why,
And as always thanks for watching my videos,
Hiram
I recently discovered you can buy ceramic wool for fireplace insulation on Amazon relatively cheap. It can handle high temps and works well as a wick medium. I'm thinking of ordering some and making a bunch of stoves out of it.
Wow! Great video. I just did a random search for carbon felt fireproof and this is the first thing that popped up. Oddly enough I am looking for the info to do the exact same thing! My wife pointed out your hat and I got a chuckle about that and started looking closer at your backdrop and noticed you have an identical mini school locker to one that I have.
Look for Robert Murray-Smiths channel TNT he's awesome.
Thank you for the education Hiram. I will be using the carbon felt for sure now fella.
But the fibreglass material is free. You can pick it up off the ground at any house being resided. I put a 1/2 size cookie between the pipe being soldered and the wall.
i say pack it with fiberglass and top it with Carbon Felt :)
Hay Hiram ! thanks for all the videos ! been a subscriber now for about 3 weeks,
and I caught a boo boo on this video you said that the carbon felt had a melting point of 1100 deg. while the package you were holding said 1800 deg. ya must have mis-read it
.... but that is why it has never melted on you ...1100 deg. would have ! I've seen some extreme temperature from these stoves just on 91% alcohol ! in excess of 1200 deg! enough in some cases to melt aluminum cans....one of the reasons I use tin cans only !
changing the fuel to Denatured Alcohol would only raise that temperature.
the problem of getting super high temperatures is in windy conditions or air being forced into the burn by some means, i discovered that by a desk fan ! it melted the aluminum beverage burner slightly and I could just poke my finger through it after it cooled !
Nice videos Hiram. Have you ever tried ceramic insulation? I have a load left over from when I built a gas forge for knife making and whilst it doesn't burn, it sure absorbs a lot of alcohol. I've placed an order for carbon felt from a seller in China. I can't find the stuff in the UK.
Rockwool and ceramic wool work just as well as carbon felt, and much cheaper...
I found a welding blanket which is just glass cloth, as one might use for making boats, by adding resin. It's huge and about the same $22 price as the black one.
I accidentally melted aluminum using isopropyl when I was using one of my can stoves to help cure the inside of my forge. the stove melted
carbon felt shrinks a little over use.
You're right, Harry. That's why I always cut my carbon felt so it overlaps. That way as it shrinks it doesn't leave a gap.
I've heard of it but it's way to expensive for my "research budget". Would be interesting to play with but I think it would be to expensive to be used in a DIY camp stove.
TheLionsDen72 is right, fiberglass can smell when it burns out... I have no idea what is oxidizing, or why, but it simply does. I am rushing to the store to try out some of this Carbon Felt.
Would using carbon felt in the top of zippo handwarmer work as a replacement for the catalyst it comes with ?
No , it won't work . Catalyst contains platinum or something similar .
You can use the carbon felt in the bottom part of the hand warmer to absorb the fuel , not sure it would be much of an improvement though .
Do you think fibreglass woven cloth would work good enough?
FiberFrax we used it to pack induction heaters which heated billets to 2150 F, it don’t melt. However, you can’t handle it a lot it’s like bread dough you can’t keep messing with but it will last forever.
Yeah,the fiber will glaze over on the top. I then just flip it over and get a few more burns out of it. Then I reach in my pump house and grab another little puff for my next trip. I still use it cause it's there and it works. I'll graduate to the carbon felt one of these days.
You should try some rockwool
There's that Origo alcohol stoves
That's what they put in their fuel canisters
And they've been doing it a long time
If there's anything better let us know
Save money, use fiber glass in most of the burner with a top of thin carbon felt. Works as good as solid CF and the fiberglass dosent melt but still wicks perfectly.
I built a stove with the white braided fiber rope used to seal woodstove doors. It is probably glass or rockwool fiber. Use a soup can to extinguish the flame, and the winding of two turns of rope brings it almost but not quite to the level of the can, so there is not much air available at the top of the rope for really high temperatures to develop.
i been using rock wool get it out the old kitchen stoves oven doors
quick question I don't know if you have answered this before but what other materials can be used i am looking to get into making burners i will definitely get carbon felt I was just wondering
once upon a time I made a small trivet pot stand for the trangia stove out of 1/8 " aluminum strapping and stainless steel carriage bolts. It lasted less than 6 two cup runs before it self destructed from melted aluminum parts. It had lasted dozens of runs using sterno and other alcohol wick in a can burners.
I found the fibreglass felt only melts when you run the stove dry
Snuff it while there's still alcohol there and it's fine
In some stoves I've used perlite with good success but it's a loose material so you have to take care about spilling.
Some time back, on my other channel, I did a video I named,"Look at that!" "It just melted" where I used an aluminum ring cut from a soda can on the GrillTop Stove Stand to lift a pot up to circulate the heat better. The alcohol burner melted the ring right down. You're right, it does get hot.
Thanks. Have you tried blue jean material?
the fiber glass that i use just glows whhen the alcohol ends. the fiberglass itself dont change.
Will carbon felt with candles and use it instead of cardboard in a buddy burner?
Have you experienced any shrinking of the carbon felt? I made a version of MrBillTroop79's Copper Whopper where I lined the inside with it, and it seems as if it shrunk just a little.
Thank you for your video. In a few days i'll be using this wrapped around a smoker that could see external temps of up to 500 or maybe 600F, i was nervous but after seeing your video i can tell i won't be subjecting it temps that are really that high compared to what it can withstand.
Steiner Velvet Shield Welding Blanket - Carbonized Fiber, Black, 18In. x 18In., Model# 316-18X18--good to 1800 F found at Northern tools
Hi Hiram, Love your channel, It would be great if you could give us a tour of your workroom in one of your videos , you look to have lots of interesting stuff behind where you film .
Why do you think that Trangia and Evernew use fiberglass instead of carbon felt? By the way, I enjoy all your videos and appreciate very much the effort that goes into them.
Great video here ..Jan 2019 I sourced some Carbon fibre matting in China on E bay
24" x 24 " x 1/4 thickness delivered to the UK for £12.. great I use it in handwarmers , burners
and lamps.. it is easily ordered about 3 weeks delivery to me ...good luck all
5:13 is not 1100 F but 1800 F working temperature He is pointing right there and making the mistake )
And they are still full of crap..I bought one to cover my kiln in the winter....stays under 1100F..it flamed up and melted my controller...those blankets are not what they claim to be..Although good for welding spatter they suck as a heat shield blanket.
redneckhippiefreak That's probably because carbon is a very good conductor for heat. The flame never touched your controller, but the heat was spread through the carbon, and melted it anyway.
Harbingerofd00m What about "Flamed Up' Didn't you understand? It caught on fire. I had to put it out with an extinguisher. Ive had real carbon blankets, Kevlar and asbestos ..This is not what they claim it to be. Just sayin.
Hello what carbon felt do you use 1mm, 2mm, 5mm thickness ? I want to order some for my zippo hand warmer Thanks.
Thank You for the info on carbon felt I seen a small package at Home depot it was 17 dollars too spendy for me I would go for the big piece for the money
Ain't kevlar better or what about exhaust wrap from autozone
oh yeah it was exciting for a little while but the tidal wave created by the toppling pot full of boiling hot water put out the alcohol fire from the upturned trangia stove :) its all good.
Yeah fiberglass insulation also smells when you let it burn out. Carbon felt is just better all around. Thnx for the show & tell.
Rock wool is a whole different story. I should get some of that to try.
I've bought two of the 3ft by 3ft blankets. Next time I'll buy the 6 by 6. 8-)
I've bought two 3 X 3s too. Maybe I'll try 6 X 6 or 9 x 9 (O_o) because i sell stoves, windscreens, and potwraps made out of carbon felt on my site.
CAN YOU USE CARBON FELT FOR REPLACEMENT OF HANDWARMER
You're right. You do need to be careful with it.
blue jean insulation would work well too. :) -
i whish you could see my go to burner. its just so simple but effektive.
thats soft insulaition . try the thick like fore pellet burners . instaleytion.
I enjoyed this video, Hiram, but at 30 seconds into it, and you dropped the fiberglass insulation onto your table. It looked a lot like Donald Trump's hair.
This isn't intended to be a political statement, but I thought it might be fun to mention.
Keep up the GREAT posts!
Can't Unsee
What about the fumes? Are they leathal?
im sorry i tried to explain my stove in inglish but it dont work sorry.
i was wondering about that also goodtm to know as a welder
Glad you found what I told you about on your channel. xD
Really appreciate the information on where to purchase an ample sheet of Carbon fiber,
Thanks Hiram!!
Try fire rope (ebay) its used in fireplaces and stoves, very cheap, withstands really high temps and absorbs well i use it a lot in my stoves, you should also look at kiln insulation pretty cheap and able to withstand incredible temps and again much cheaper than carbon felt.
Prepping to Survive UK - Scorcheo I was gonna suggest this as well, glad I checked comments 😂✌️great minds?!
Hi, one question, its the carbon fiber toxic?, becouse I read that it contains phathalates and coud cause cancer
theRuthlessLord 9/10 you’re gonna be outside when burning an alcohol stove using cf or insulation...so I’m sure as long as it’s vented it’s ok
how would sand work in a pinch?
Probably yes but sand has similar issues as fibre glass... both sand and fibre glass is...well basically silica whereas perlite is silica and from a mechanical standpoint much more heat resistant in regard to melting/fusing and glazing over... But if in a pinch masonry sand would probably work nicely as well
i whish i could make vids. like you do but i cant .
Wonder if you ever heard of Aerogel, I would like to see if it would work against the carbon felt.
Aerogel is super insulation but it is as delicate as a soap bubble.
keep exploiting.
Will acetone work as fuel?
Tons of smoke
Is perlite made out of asbestos?
I believe that Perlite is expanded mica which sometimes contains asbestos.
@@MichaelEMausThanks for the intel!
No vermiculite is the one which might have asbestos, years ago. Now it is tested to ensure no asbestos.
who is mack
Johnnie Blevins His buddy Max is his dog at the end.
I have worked with fiberglass insulation for years hanging board and hate it. We call it what it is " itch". I see people selling the carbon felt in place of the fiberglass wrap and using it for coozies, does it work that good with no prickley glass in your fingers? I have a choke hazard, and a minnie heat both have carbon felt in them and I have never felt the splinters, I always thought it was because of the alchol.
Every time you touch the fiber glass i cringe alittle. Wear some gloves at least!
Hi. What about STEEL WOOL ?
Try it out. (It burns!)
Good Video.
One of these days I may make a burner with carbon felt in it.
The current Alcohol burner I use is made from 2 aluminum soft drink cans.
it boils 1 and 1/2 cups of water in about 3 minutes and burns for 18 minutes on 1 oz.
Those burners look interesting.
Thank you!