Will sun have an effect on the Liquid Rubber Waterproof Sealant? No, Liquid Rubber Waterproof Sealant has specially designed polymers that are UV resistant. Related articles What if I don't want black as my final color? The black surface turns brown when wet? What is Liquid Rubber MetalSafe Sealant used for? Can Waterproof Sealant be applied to Styrofoam? Comments 0 comments Please sign in to leave a comment.