Orange, Class 4, Type II Zip-On Style Insulating Blanket. 18" x 36".Zip-On Style (Zip) features one-inch wide strips of hook and pile double stitched to the blanket with nylon thread, so installation and removal is safe and fast.Salisbury's Type II, SALCOR® blankets will hold thier color and flexibility, and will maintain physical properties and dielectric strength, required by ASTM Standard, in the field longer than any other blanket ont he market. The Orange SALCOR® is manufactured from a well researched blend of prime EPDM, which is naturally resistant to ozone. This blend of Prime EPDM offers superb flexibility; similar to that of a Type I natural rubber blanket. This ensures the Salisbury Type II, SALCOR® blanket will pass the ASTM D1048 Ozone Tests.