Resources
Products
MinWool Safing
MinWool Safing
![](/etc.clientlibs/jm/clientlibs/clientlib-all/resources/images/ProductOpenArrow.png)
![](/content/dam/jm/global/en/building-insulation/images/images-142x87/MW_COM_SAFING_6022_PROD_HR%20142x87.jpg)
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.
![Johns Manville Johns Manville](/content/experience-fragments/jm/products/en/building_insulation/commercial/mineral_wool/minwool-safing/minwool-safing/_jcr_content/root/xfproductview/1/xftabcontent/rightOne/image.img.jpg/jm)
Advantages
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.
ASTM Standards | ASTM C665 | Unfaced: Type I Faced: Type III, Class A, Category 1 |
Flame Spread | ASTM E84 | Unfaced: 0 Faced: ≤ 25 |
Smoke Development | ASTM E84 | Unfaced: 0 Faced: ≤ 5 |
Water Vapor Permeance Facing | ASTM E96 | 0.02 perms, maximum |
Water Vapor Sorption | ASTM C1104 | < 1% by weight; < 0.2% by volume at 120ºF (49ºC), 95% RH |
Odor Emission | ASTM C1304 | Pass |
Corrosiveness | ASTM C665 | Pass |
Fungi Resistance | ASTM C1338 | Pass |
Combustion Characteristics | ASTM E136 | Pass |
ASTM C612 | Type 1–4 |
Limited Warranty
Literature
Product Selector Guide
Mineral Wool Product Comparison Chart
Mineral Wool 2.0 Sell Sheet