Click HERE for product information and availability Click HERE for the InsulTek attic card InsulTEK1 fiberglass unbonded blowing insulation is designed as a loose-fill insulating system that is effective when installed in attics, walls and subfloors. It is also used in other spaces that are hard to work in or reach. InsulTEK1 is formaldehyde free, non-corrosive and non-combustible. InsulTEK1 doesn't support mold growth. Inorganic fibers will not decay or provide habitable environment for fungus, mold or pests. As a professional product, InsulTEK1 is installed using large, high volume blowing wool machines mounted on vans and trucks. S P E C I F I C A T I O N S ASTM C 764, Type I, Category 1 Density (ASTM C 519) Burning Classification (ASTM E 84) Flame Spread < 25 Smoke Developed < 50 Water Vapor Sorption (ASTM C 1104) 5% or less by weight Non-Corrosive (ASTM C 665, 13.8: pass) Non-combustible ( ASTM E 136: pass) Fungi Resistant (ASTM C 1338: pass) Critical Radiant Flux >0.12 (ASTM E 970) Odor Emmision (ASTM C 1304: pass)