FlameSafe® Firestop Device
Resilient Strip Designed to Firestop Combustible Penetrants.
The FlameSafe® Intumescent Wrap Strip (FSWS) Collar utilizes the FlameSafe® Intumescent Wrap Strip (FSWS) in conjunction with a sheet metal restraining collar to direct the expansion of the wrap strip into the penetrant item during a fire. The restraining collar and FSWS are available separately in 12 and 25 foot rolls respectively or as preassembled devices. US Patent No. 6,207,085.