Lexel all-purpose co-polymer rubber-based sealant has excellent adhesion to a wide variety of materials, even after 7 Days of water immersion. Although it's tougher and resists tearing, Lexel is a soft rubber. This allows it to stretch and compress with joint movement. Can be applied to wet or dry surfaces, indoors and outdoors Can be applied to joints up to 2W water and mildew resistant.