Flame Buster®Intumescent Silicone

Intumescent Silicone Sealant


This expanding, neutral cure intumescent sealant is designed to prevent the spread of fire, smoke & toxic gases. When exposed to temperatures above 300˚F, it expands to fill the voids left by collapsed materials.

PVC and other plastic through-penetrations


  • Expands at temperatures over 300°F
  • Expands to 6 times original volume (at 662°F)


Meets specifications ASTM E-814, ASTM E-84, UL1479, UBC7-5, CAN4/ULC-S115M

SKU Listing
Product # Color Size Material Safety Sheet UPC
WL8801010 Red 10.0 fl. oz. Download 023275880108
Product #1
Product # WL8801010
Color Red
Size 10.0 fl. oz.
Material Safety Sheet Download
UPC 023275880108