Alex Plus, 10.1 OZ, Clear, Acrylic Latex Caulk Plus Silicone, A Superior Quality, All Purpose Acrylic Latex Caulk Plus Silicone. Highly Flexible & Durable For A Waterproof Seal, Excellent Adhesion, Cured Caulk Is Mold & Mildew Resistant, Easy To Apply & Tool, Paintable, Easy Water Clean Up, Indoor/Outdoor Use, 40 Year Durability, Exceeds ASTM Specification C834.