HydroFlame™ 300 Series Silicone Firestop Sealants

Moisture-repellent fire sealant designed to protect from water and fire penetration.

HoldRite® HydroFlame Silicone Firestop Sealants help protect vertical and horizontal construction assemblies from the spread of flames, smoke and hot gases. The 300 series caulk-grade and self-leveling firestop sealants are ideal for applications where washout conditions are common or in through penetrations where moisture is a concern, such as bathrooms, water heater closets and kitchens.

Plumbers and commercial grade contractors most often utilize silicone firestop sealants in high-rise builds that require every third or fourth floor to be a water rated floor. The 300 series fire-rated sealant has antifungal properties that create a moisture-repellant fire seal, keeping water, fire, smoke and gas from doing more damage.

The silicone firestop sealant cures in just three days, and tack up time to when you can expose the area to water is only 20 to 30 minutes. Use it on a variety of pipe types including metal pipes, insulated pipes, cable bundles and plastic pipes.

300CG group

The HydroFlame 300CG Firestop Sealant is caulk-grade and can be installed in floor or wall applications. 

300SL group

The HydroFlame 300SL Firestop Sealant iself-leveling and can be installed in floor applications.