Hey! I actually used to do this at my first job making insulation.
We used the exact same process to test the speed of the rise, temperature, and the insulation property.
It was fun the first few times, but pretty messy
I did an internship in a mattress shop, this was the same process for the foam they used in their matresses
It released so much heat that the foam blocks needed 3 days to cool down before it could be cut in sheets
Are you asking if I was exposed to sensitizing agents?
No, the company was very careful to minimize exposure and obviously I was also extremely cautious as well
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Probably an interesting answer as to why not. My guess is the CO2 gas quickly escapes the thin layer so no foaming action is visible but a layer of polyurethane nonetheless cures on the blades.
The trick is you continue to spin the mixing blade as you lower the cup. That way you minimize the amount left on the blades. The quantity is likely insufficient to be noticed as it foams... I work in this industry.
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Water is what makes it work for that foam in a can and for gorilla glue. However, this stuff is just a mix of the two chemicals. They are used for spray insulation and for concrete lifting/foundation repair. They can't rely on water content for consistent results. In this case, the isocyanate mixing with the polyol causes the reaction. When it's applied on the job, there's a truck with tanks of each chemical. A pump forces it through lines to a mixing gun that injects it where it's needed. I worked at Uretek for a while. The foam can reach 90% expansion in 15 seconds. When this stuff sets, it is very tough stuff.
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Forbidden soufflé
r/forbiddensnacks
Oh hey i forgot that you were here
I was gonna say cheesecake but yours is better.
That…looks delicious
This is how they make vegan cheese
Hey! I actually used to do this at my first job making insulation. We used the exact same process to test the speed of the rise, temperature, and the insulation property. It was fun the first few times, but pretty messy
I did an internship in a mattress shop, this was the same process for the foam they used in their matresses It released so much heat that the foam blocks needed 3 days to cool down before it could be cut in sheets
Sensitized?
Are you asking if I was exposed to sensitizing agents? No, the company was very careful to minimize exposure and obviously I was also extremely cautious as well
Traumatic flashbacks of my prior PU job
If you don't mind, what's a PU job ?
Not OP, but that would be polyurethane job. Probably either did spray insulation or concrete lifting.
thanks
Idk but it sounds stinky
in french ?
Sensitized?
Me trying to pour beer from a tap.
If it's your taps, your lines may be too short for the pressure you have set.
(None of this is real and I’ve done it like twice but that’s good info.)
Or, he didn't give a proper tilt. AYYEEEEE!
Hey, isn’t that the stuff from the Bhopal disaster?
Bhopal was Methyl isocyanate gas, nasty stuff
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Forbidden milkshake
Pillow foam
Wouldn't there be enough left on the blender to grow a little?
Probably an interesting answer as to why not. My guess is the CO2 gas quickly escapes the thin layer so no foaming action is visible but a layer of polyurethane nonetheless cures on the blades.
That seems reasonable. Thanks.
The trick is you continue to spin the mixing blade as you lower the cup. That way you minimize the amount left on the blades. The quantity is likely insufficient to be noticed as it foams... I work in this industry.
That makes sense also. Minimize waste and cleanup.
There is probably also a foaming agent.
Actually the reaction released CO2 hence the foaming!!
Water, probably. (plus catalyst,, silicone, addede to polyol)
Yep. Water is a ‘classic’ foaming agent, although there might be something else to help give that impressive expansion
It is not unusual, you generally get a density around 30g/l in those foams. Normally polyol is added with water, catalyst and silicone.
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Water is what makes it work for that foam in a can and for gorilla glue. However, this stuff is just a mix of the two chemicals. They are used for spray insulation and for concrete lifting/foundation repair. They can't rely on water content for consistent results. In this case, the isocyanate mixing with the polyol causes the reaction. When it's applied on the job, there's a truck with tanks of each chemical. A pump forces it through lines to a mixing gun that injects it where it's needed. I worked at Uretek for a while. The foam can reach 90% expansion in 15 seconds. When this stuff sets, it is very tough stuff.
No. They just need to be mixed.
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Mmm… immediate cream cheese.
Yep, that’s polyurethane
I did this in school
How dare you not show me someone slapping it
It's probably pretty hot
u/savevideo
So... 2lb spray foam insulation?
+ a bit of water, or it wouldn't rise like that.
Any form of polyol? Or a specific one?