Seal the deal with confidence! 🔧 Meets federal specs and ASTM standards for peace of mind. Experience secure bonding that stands the test of time. Self-leveling and paintable for a flawless finish. Quick application with a narrow tip for precision. Perfect for all types of joints—brick, wood, concrete, and more. Weatherproof protection Paintable finish Tight, strong seals The SIKASikaflex White Construction Sealant is a high-performance polyurethane sealant designed for all types of joints 1/2" or smaller. With a 10.1 fl oz cartridge, it offers exceptional adhesion, elasticity, and weatherproofing capabilities, making it ideal for both amateur and professional use. Its self-leveling formula allows for easy application and a seamless finish, while meeting stringent safety standards.