Will sun have an effect on the Liquid Rubber Foundation Sealant? Yes, Liquid Rubber Foundation Sealant should not be exposed to UV over long periods of time. Use Liquid Rubber Waterproof Sealant for UV projects. Related articles Will sun have an effect on the Liquid Rubber Waterproof Sealant? Can this product be used to waterproof shower walls and base? Can it be tiled over? Can I build my final membrane all at once? What should I use to clean up before applying Liquid Rubber Foundation Sealant? I'm looking to seal my cement interior floor before putting on sub floor. What is the prep before applying and how is the Odor? Comments 0 comments Please sign in to leave a comment.