DAP Dynaflex 800 – Premium elastomeric hybrid sealant

DAP Dynaflex 800 is a premium elastomeric hybrid sealant formulated for demanding window, door, siding, and trim applications. It provides exceptional flexibility, a strong long-term bond, and excellent performance in extreme temperatures and weather conditions.

Its advanced formula adheres to most construction materials, including wood, vinyl, aluminum, fiber cement, and composites—and resists cracking, shrinking, and UV degradation. Paintable, low odor, and easy to tool, Dynaflex 800 delivers the durability and clean finish required for both residential and commercial projects.

Key Features:
• High-movement elastomeric performance
• Superior adhesion to common construction substrates
• Long-lasting weatherproof and UV-resistant seal
• Crack-resistant and shrink-resistant formulation
• Paintable for a seamless finish
• Low odor, smooth tooling
• Ideal for windows, doors, siding, and exterior trim

Applications:
• Window and door installations
• Exterior siding and trim joints
• Expansion and control joints
• Corner, butt, and lap joints
• PVC, wood, vinyl, and aluminum assemblies
• Fiber-cement board connections
• General exterior sealing and weatherproofing