Scotchcast 3M electrical cable splicing kit 92-NB-A1 Suitable for underground cable splicing 3M Scotchcast Resin is a non filled, two component polyurethane resin for room temperature curing. The resin has been designed for electrical insulation and mechanical protection of electrical cables joints. The 40 resin is classified as LIW (low voltage insulation water curable) according Cenelec HD 631.1 S2 Standard. Once the hardening is complete, the resin provides impact resistance and durability against moisture and atmospheric corrosion. New, packaging has not been opened