Easy to apply and quick to set, this caulk is a popular choice for sealing small openings in fire-resistant walls and floors. It’s often used to line seams or fill gaps around cables or pipes that run between rooms. You can use it alone or with other fire-stop products. This caulk is tested to ASTM and UL standards for stopping the spread of smoke and flames. It resists vibration, so it will flex with movement rather than crack or pull away from surfaces. Apply with a caulk gun or trowel.

Silicone caulk forms a watertight, flexible seal. Use it to seal openings that are exposed to weather, washdowns, or standing water.