ROXUL Insulation;Wool;Foil Backing

High Temperature Insulation; Density 8 lb/cu ft; Facing Material FSK Facing; Flexibility Not Applicable; Foam Cell Type Open; Form Board; Insulation Color Brown; Insulation Material Mineral Wool; Maximum Operating Temperature 1;200 Degrees F; Minimum Operating Temperature 0 Degrees F; Overall Length 4 ft; Overall Width 24 in; R Value 4; Thickness 1 in; Standards ASTM C612 Type 1VB; C665; C795 Stainless Steel; Chemically Inert; E136; E84