3M 401+ Green Masking/Painter's Tape, 12 mm, 64759 (T933401) Core: 3" diameter Backing/Carrier: crepe paper Adhesive: solvent-free rubber Certifications: Can be qualified for ASTM D-6123 (replaces obsolete PPP-T-42C, Type I CID-A-A-883A) Thickness: 6.7 mils (carrier, adhesive)