I want to use a mix of polyurethane and acetone to coat some polyester fabric. I have the choice between using a PU glue or a PU foam but because polyurethane isn't a single material with a fixed composition but rather a range of chemicals sharing similar chemistry, I wonder which one would be better.
I want the lightest coating possible it should be water proof as well as UV resistant one.
So here are my questions:
● Should I go with a PU glue or a foam?
● Will the UV resistant property of the foam would still work once it is dissolved in acetone?