170.3 Sound & Crack Isolation Mat is a high performance acoustical underlayment system that muffles impact noises through ceramic tiles, stone and other hard surfacing materials. It also minimizes the transmission of cracks from the substrate to the tile installation up to 1/8" (3 mm), non-movement cracks. 170.3 Sound & Crack Isolation Mat is a 3 mm thick rubberized membrane comprised of 88.5% post-consumer recycled materials.

• Isolates transmission of substrate cracks of up to 1/8" (3 mm) from transferring to the finished floor
• Delta IIC rating of 16 per ASTM E2179 (See PHYSICAL PROPERTIES)
• IIC rating of 44 per ASTM E492/ E989
• Load bearing - "Light" service rating per ASTM C627/TCA
• Meets ANSI A118.12 specifications
• Easy and fast to install with standard tools
• Interior dry applications only