Ppg paints top gun 400 caulk is a premium-grade elastomeric arylic urethane sealant. This all-purpose sealant is made with dupont™ kevlar® for exceptional strength and durability, making it great for both indoor and outdoor use. Top gun 400 also offers superior adhesion, for easy application. Internally Plasticized to reduce dirt pickup, eliminating yellowing and shiners, keeping the surface cleaner longer. Cure time is 4-6 hours before painting. Bronze color is a great accent color for all applications. Exceeds ASTM c-920 standards.