3m Fire Barrier Sealant Red-brown 4-hour

A Premium Intumescent Latex-Based Sealant Offering Outstanding Fire Performance Plus A Non-Halogen Formula. Intumescent-Expands When Heated To Seal Around Items Consumed By Fire. | Endothermic-Releases Chemically Bound Water To Cool Exposed Surfaces | When properly installed, this product provides up to 4-hours fire protection in tested and listed systems.