A new polystyrene tub had liquid nail residue on the side and center of tub. The Aqua Glass web site called for acetone to clean up mess; however, the acetone melted finish and created several 1/16 craters. I later learned that the tub was from a sister company of Aqua Glass that uses polystyrene, but publishes under the Aqua Glass name. Does anyone know how to repair the damage?