MinWool Safing - Mineral Wool Insulation
Johns Manville MinWool® Safing is available plain or with a foil facing vapor retarder on one face. Nonorganic and moisture-resistant, MinWool Safing prevents smoke and flames from passing through openings in fire-rated assemblies. It is designed to provide a fire-rated seal when installed between the spandrel panel and floor slab in commercial curtainwall systems.
Fire-Resistant: Melting point in excess of 2000˚F (1093˚C). Unfaced: Flame Spread of 0 and Smoke Developed of 0. Faced: Flame Spread of 25 or less and Smoke Developed of 5 or less.
Durable Inorganic Glass: No growth of fungi. No sustaining of vermin.