DAP BLOCKADE is a high-performance, water-based intumescent acrylic firestop sealant that meets ASTM E814/UL 1479 standards and is tested for 4-hour fire resistance. Treating general firestopping applications, it is ideal for both combustible and non-combustible penetrations and expands to fill voids created by burning materials. BLOCKADE offers excellent adhesion to unprimed surfaces, flexibility, and easy application. It is paintable once cured, has low odor, and cleans up easily with water. The red color makes it easily identifiable as a firestop sealant. Suitable for interior use.

Features & Benefits

• Meets ASTM E814/UL 1479: Standard Test Method for Fire Tests of Penetration Firestop Systems
• Strong adhesion to unprimed surfaces, ensuring an effective seal and long lasting performance.
• Intumescent product expansion fills the void created by combustible materials burned during a fire.
• Easy water clean up and low odor, making application convenient and comfortable.
• Interior Use Only.
• Treats general firestopping applications for combustible and non-combustible penetrations.
• Ideal for firestopping a range of penetrations, including steel, copper, and EMT pipes, plastic pipes (vented and closed), fiberglass, AB/PVC pipe insulation, Romex, cables, ductwork, and more.
• Strong adhesion to multiple materials including wood, aluminum, metal, vinyl, most plastics, plaster, drywall, painted surfaces, concrete, masonry, stone, brick, glass, and stucco.