DAP ALEX PLUS All Purpose Acrylic Latex Caulk Plus Silicone, Clear 10.1 oz is a superior quality, all-purpose acrylic latex caulk plus silicone that is is highly flexible, durable, and has excellent adhesion to create a long lasting waterproof seal.America's #1 selling latex caulk, is a superior quality, all-purpose acrylic latex caulk plus silicone. It is highly flexible and durable for a waterproof seal with excellent adhesion. ALEX PLUS is easy to apply and tool, is paintable, cleans up with water and mold and mildew resistant after curing. Exceeds ASTM Specification C834.