Scotch Tape 31 is a 60 mil thick, premium grade, MSHA approved, heavy duty mining tape. This flexible tape provides resistance to abrasion, water and oil. It has an aggressive, abrasion resistant, rubber backing that is ideal for splicing and repairing jackets on mining cables. It withstands a wide temperature range of 32 to 221 °F (0 to 105 °C).Scotch Heavy Duty Tape 31 has an aggressive, abrasion resistant, rubber backing that is ideal for repairing jackets on mining cables. The flame retardant, mastic adhesive on the tape has a self healing property that helps keep out moisture while providing optimized adherence. It is designed for on site, quick, universal cable repair and for repairing outer jackets of mining cable splice kits. MSHA Approved and RoHS 2011/65/EU Compliant.