BIOSTOP® 350i

bio350iIs a one component, general purpose fire rated sealant and smoke seal for construction joints and through-penetrations. Intumescent, water based, non sag caulking grade sealant that is easy to apply as well as to retrofit. It cures to an elastromeric seal that is suitable where dynamic movement is expected. STC rating 53, Tested in a UL 411 wall assembly/section to ASTM E90. Complies to Required Environmental Exposure Testing of Accelerated Aging and High Humidity as per UL 1479 Fire Test of Through-Penetration Firestops.

SDS: html / pdf
Product Data Sheet
List of Approved Systems

fbc-logo-150x86 c-ul-us1 fm-approved

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® pipe and fittings.

FBC, FlowGuard Gold®, BlazeMaster® and Corzan® are licensed trademarks of The Lubrizol Corporation

Product Code Size Qty per Case
66531 10.3 ounce cartridge 12
66621 20.2 ounce sausage 12
66622 30 ounce cartridge 12
66623 5 gallon 1