Biostop Intumescent Sleeve

sleeve_webIs a firestop seal for PVC, cc-PVC, CPVC, FRPP, PP and ABS pipe and rigid non-metallic conduit installations. Easily installed without modifications, steel bolts or fasteners, the Intumescent Sleeve is an ideal approach for firestopping combustible pipes penetrating the uneven contours of a concrete fluted deck assembly.

Dimension of the Biostop intumescent sleeve 234 is 17” x 8”
Biostop intumescent sleeve 68 is 31” x 10”.

SDS: html / pdf
Product Datasheet
List of Approved Systems

US Patent No. 6,207,085.


Product Code Size Qty per Case
66625 6”, 8” 1
66630 2”, 3”, 4” 6