Certified with ASTM E119 FIRE RESISTANT 2 HOURS is engineered as high performance fire resistive systems for sealing expansion joint openings. The systems are comprised of a flexible, high purity ceramic fiber blanket and stainless steel foil as required to achieve a specified protection and endurance rating. Systems are secured directly to the structural concrete expansion joint opening. The fire resistant rating can reach 2 hours. Different levels of fire barrier can be chosen for different building designs.