So not sure if this the correct place but I have some 300D polyester ripstop fabric with a pu coating on one side and a dwr on the other. I would like to try to remove the PU coating to gain some breathablity and get a little off the stiffness out. I've seen ppl use isolalcohol, heard washing the material in washer with some softener n bleach would dissolve the PU? and just learned that DEET destroys PU coatings. But my question is what would be the safest/best way eaither to try and remove some/all of the PU coating or if anyone has done this what worked best for you? The fabric is unused and not sewn so just a normal 60" x 3yards sheet. Any input would be appreciated thanks..