Sealants can be used across variety of pipe types

From: RWC

RWC now offers an even more robust solution with the launch of the HydroFlame 300 self-leveling (HF300SL) and HydroFlame 300 caulk-grade (HF300CG) silicone firestop sealants. HF300SL and HF300CG are moisture-resistant silicone fire sealants designed for areas subjected to high levels of moisture, or when UL-listed W ratings are required. The self-leveling HF300SL is designed for floor applications, while the HF300CG is a caulk-grade sealant designed for use on both floor and wall penetrations.

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