JVCC REF-7 Engineering Grade Reflective Tape: 3 in. x 30 ft. (Silver-White) Certifications: LS-300C (Reflectivty 1 Class 1), FP-85 (Type II), ASTM D4956-94 (Type 1) Carrier/Backing: enclosed lens retroreflective urethane film. Adhesive: acrylic. Adhesion: 50 ounces per inch (to stainless steel test panel) Thickness: 12.8 mils (carrier, adhesive, liner) 6 mils (carrier, adhesive) 6.8 mils (liner) Service/Operating Temperature: -40F to 180F. Application Temperature: 50F (minimum).