Flame Buster® Fire & Smoke Blocking- Silicone Sealant

Fire & Smoke Blocking Silicone Sealant


This premium silicone sealant is designed to block the spread of smoke and fire. It forms a water-resistant seal that will also resist smoke and toxic gases, ultraviolet radiation and ozone.

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, FBCTM, FlowGuard Gold ®, BlazeMaster ®, Corzan ® and TempRite ® are trademarks of Lubrizol Advanced Materials, Inc. or its affiliates.

copper and other metal through-penetrations


  • Can be applied in temperatures ranging from -20°F to 122°F
  • Resists cracking
  • Will withstand temperatures up to 300°F


ASTM E-1966 (UL 2079), ASTM C-920 class 25, including 3/8” vertical wall joint and an open 4” diameter through penetration resembling UL 2079 and UL 1479 assemblies, Meets ASTM E-814 (UL 1479) and UBC 7-5, This sealant was tested according to ASTM E90 to verify no performance loss for an STC 57 wall partition bearing multiple firestop systems

SKU Listing
Product # Color Size Safety Data Sheet UPC
W44117010 Red 10 oz. Download 023275880207
Product #1
Product # W44117010
Color Red
Size 10 oz.
Safety Data Sheet Download
UPC 023275880207