3M Fire Barrier RC-1 Restricting Collar

3M Fire Barrier RC-1 Restricting Collar works in conjunction with 3M FS-195+ Wrap/ Strip or 3M Interam Ultra GS for firestopping penetrations in wall and floor ceiling assemblies. It is classified by UL for use on PVC, CPVC, ABS, PP and PB plastic pipes.28-gauge steel. Convenient 25-foot (7.6m) roll- cut only what you need. Required for firestopping plastic pipes larger than 4 inches (101mm) in diameter.3M Fire Barrier Expantrol Flexible Intumescent Strip (E-FIS)3M Fire Barrier E-FIS is designed to seal the air space between doors and frames, as well as for glazing fire resistant glass to help prevent the passage of smoke and flames in the event of a fire.When exposed to heat such as a fire, the material expands to seal the gap and forms a char to deter the spread of a fire. This expansion or intumescence of the material helps prevent noxious gases, flames, or other by-products that may be produced in a fire from penetrating into adjacent areas.