Im spraying PVA on top of gel coat as part of a repair process but the PVA seems to be “attacking” the gel coat what is happening?
Two things are probably happening. The gel coat may not have been allowed to become tacky enough (is not hard enough) and the PVA is penetrating its surface. Also, you may be too close to gel coat surface while spraying or air pressure in the spray gun is too high forcing the PVA into the gel coat. Spray from a distance that allows PVA to atomize (mist) completely before coming in contact with the gel coat.
