This problem with the spray foam insulation stumped us!
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- Опубліковано 22 сер 2024
- In 17 years of spraying foam insulation we had not encountered this problem.
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Still learning after all these years. Good for you. Stopped spraying and fixed the problem. True professionals. 👍🏼👍🏼👍🏼
Thanks 👍
learned so much from you. I wish all the trades had folks like you....both knowledgeable and honest
I appreciate that!
I don't want to dismiss the possibility that there is something wrong with the reactivity of the iso, but in my experience, mixing and pattern issues are typically pressure, ratio and viscosity issues (assuming a clean chamber of course). I don't believe that the chemistry of the reaction has a significant role to play on the spray pattern. From what you said, I do think the pour over barrel was the issue, but maybe the viscosity of the iso was much higher than normal, causing a bad mix. I would be very interested if you tried this again with raising your a side pre heaters by 10-15F and see if it opens up the pattern.
Joel, all settings were the same, switched barrels and problem was gone.
Very interesting video. Thank you for sharing that. I've been in sprayfoam for 25 years and hadn't seen that particular issue come up through bad pour-up practices. Only from a drum of ISO that was an unknown number of years old. I hope the active sprayers out there see this and learn one of the many reasons that daily rig/shop maintenance routines may not be the most fun or rewarding things to do at work but they ultimately save you time, money and many headaches over your lifetime.
I have seen some disastrous and extremely costly versions of that happen with bad B-side pour-ups but never the A-side. I was lucky enough to start with an outfit that had very good housekeeping procedures and we poured up at the end of every day into the next job's drum.
Thanks
What you saw was dimmer in the iso. Heat the bottom of the iso drum to 160 f then run thru system. That should remove it. Dimmer crystals will still show pressure but thru increased head pressure as they plug the y strainer. The dimmer keeps the mix separated thus two color blend.
Good points to be looking for and questions to ask my forthcoming spray contractor. Of course....no spray foam guy wants some "smart-ass" customer to ask such technical questions.....but I will.
Lol...
It’s not spinning in the chamber. It’s not a bad mixing chamber? The offset of the side orifices should mix it properly to the wall if it’s a good chamber. Regardless of reactivity.
I would put money that the pour over drum had crystals in it and can almost guarantee there's a partial clog somewhere close to the mixing chamber. Also why it's not swirling in the chamber properly...... always pour over using a paint strainer screen
Killer information that I have yet to run into. Good info buddy
Thanks for watching.
damn... how long you been in the business?i like how you spread your knowledge, definitely not a know it all. hats off you bud!
First thing I thought of was it wasn't mixing correctly in the nozzle, then you said you just used the gun yesterday, then I remembered you saying in a previous video about old chemicals, I'm glad I remembered what you said. Keep up the good work!! Side question how do you guys spray behind a 1 piece bathtub/shower combo? Will you have the plumber pull the tub or is it possible to spray behind it?
Thanks for comment.
Spray before the install.
Am I seeing straight iso in your pattern? Pressure up, temperature up on ISO
Interesting indeed.
Glad you think so!
@@SprayJones This is the kind of stuff you don't know unless it happens to you. Or someone in the trade with a great reputation like you shows us. Appreciate the information. Did you join any of the convoys? I've been seeing on the news and stuff that people were vandalizing war memorials and other public property. They really think we're dumb enough to believe it's the people standing up for our rights. Just incredible. We all know the type of people who do that and it's not the stand up citizens fighting for us all.
Your chemistry language is off, it is not causing "linked up" iso. It may have reacted with some water over time from the pour overs, but too much water and it would straight crust and foam and be totally unusable. Hard to say what is going on, but your chemistry talk is fairly inaccurate. JMO.
Thanks again
Always welcome
Perhaps you can use the poor foam for structural stiffening jobs, or jobs where the 'mix' is not so important.
I don't trust it for that. ISO is the hardener so if it cannot do it's job it is relegated to mixing off other junk.
Irrelevant question for the video; but all of the spray foamers in my location (South US) are saying do 3 inches of open cell on the walls. Outside of cost any particular reason to pick open cell over closed cell?
I have a lot of videos about that. Watch the open cell vs closed info vid.
Blowing agent released
Or your gun wasn't as clean as you think
ever seen it where it's got this oily blackish goo and not sticking to the surface ?
Sticking to what? Itself or the the substrate.
@@SprayJones to the LVL or floor truss or rim board ...I will try and find some photos if I can
What's the average price for close cell spray foam per square foot ? I know different prices go with different areas. I'm in northeast louisiana and these contractors are notorious for ripping people off. Thanks
Can't say. It varies too much.
@@SprayJones Great reply it varies way to much per job as each one is different, customers ask all the time what we are at & I always say it depends on your situation and what you are spraying.
@@Tyler-xe1es Correct. "What does a car cost?" it is the same question...
@@SprayJones Exactly ! & with how much a set of foam as went up since start of covid it is crazy ! The better soloution and way of insulating peoples homes and renovations is becoming unaffordable for the average homeowner & I hate seeing them stuff batts into situations where you know the foam would correct/improve there situation tenfold. The foam jobs are priced high yes but the people think we jam all of that into our pockets and dont realize how much material cost right now. I am lucky to have very low over head but some of these guys around here with 3 rigs and some of em have 2 brand new E30s on board are digging themselves into a hole.
Maybe the iso had some contamination in it?
Not likely. Was just a normal pour down.
I suspect the ISO is not quite what it used to be before all the shortages...
Wow, wanted to get into spraying foam, even bought a gun, but this type of thing scares me....
There is a lot to know. It is a specialty trade just like pipeline welding or pressure vessels.
@@SprayJones I'm not sure we even have a company in my area I could work for to learn. Long-term plan is building monolithic domes. Got a used 3M gun but can't find a manual for it anywhere
That why we transfer at the end of the day if we have empty barrels.
Yup. Discipline prevails.
new product? overseas supplier?
No. Huntsman
The foam wall board is missing Ingredients so maybe that stuff is too!
Something does seem off. I don't remember it ever being that sensitive.
The stuff was JUNK !!
no, it got vaxed🙂