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HydroFlame™ 300CG Caulk Grade Silicone Firestop Sealant

HoldRite® HydroFlame™ 300CG is a gray colored caulk grade silicone firestop sealant designed for areas that are subject to high levels of moisture or when UL listed W ratings are required. HF300CG is a quick curing silicone sealant that can be used on a wide variety of pipe types. HF300CG can be used in both floor and wall firestop conditions and may require additional tooling if required.

  • Flexible ±33% movement
  • Low VOC
  • Repels Water – excellent for W Ratings or washout conditions
  • Excellent freeze-thaw
  • 1-year shelf life
  • FBC™ system compatible
  • Easily dispensed (caulking gun or trowel)
  • Antifungal properties
  • UL GreenGuard Gold Certified
  • Gray color to match concrete floors or walls
  • Single component silicone
  • UL Listed Firestop Systems
  • Tested to ASTM E814, UL 1479, and CAN/ULC S115 Testing Standards
  • ASTM G21 mold and mildew
Where to Buy
SKU Size Description Color
HF300CG-20S 20 oz.

Sausage

Gray
More Details

Common Applications

  • Firestopping
  • Floor & Wall Firestopping

Approvals & Listings

  • ASTM E814
  • UL 1479
  • CAN/ULC S115
  • UL GreenGuard Gold Certified
  • FBC™ System Compatible

UL Ratings

Type UL Rating Status
Fire F
Smoke/Gas L
Thermal T
Water W
*T-Rating when penetrant is non-metallic
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cUL Listed
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fbc compatible
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cul listed

“FBC™ System Compatible indicates that this product has been tested, and is monitored on an ongoing basis, to assure its chemical compatibility with FlowGuard Gold®, BlazeMaster® and Corzan® piping systems and products made with TempRite® Technology.” “The FBC System Compatible Logo, FBC™, FlowGuard Gold®, BlazeMaster®, Corzan®, and TempRite® are trademarks of Lubrizol Advanced Materials, Inc. or its affiliates.”