Co-Polymer Rubber-Based Sealant. Bonds To Almost Any Surface Including Wallpaper, Trim Countertops, Tubs, Tile, Windows, Doors, Etc. Adheres To Acrylic, Copper, Most Plastics, Polycarbonate, Polystyrene And More. Paintable. Works In Standing Water And Freezing Temperatures. Will Not Rip Apart The Substrate When The Joint Expands.