What is Liquid Rubber MetalSafe Sealant used for? Liquid Rubber MetalSafe Sealant is used for protecting and waterproofing on metal surfaces. Related articles Can I build my final membrane all at once? Will sun have an effect on the Liquid Rubber Textured Sealant? Do I have to coat Liquid Rubber Seam Tape? How should I prepare the surface? Comments 0 comments Article is closed for comments.