hgfhfghgf4324
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Sticky Foam
Any idea what this can be for the substance?
https://youtu.be/1daq1QMynG4
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EilOr
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Looks like a usual polyurethane to me
https://en.wikipedia.org/wiki/Polyurethane
In my country you can buy such a sticky foam (which looks and sticks exactly like the foam in the video) in bottles ready for use in hardware stores,
though with less pressure  It has a very low density and is stickier than most
glues, almost impossible to remove from skin, clothes etc.. After a few hours it hardens to a slightly fragile hard sponge which is great for thermal
insulation
Though I don't know which PU it is
[Edited on 24-12-2017 by EilOr]
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unionised
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The squirt cans of foam are based on methylene diphenyl diisocyanate.
That's a bit toxic, but I guess that if the alternative is a bullet...
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