

⚡ Power your splices with 3M’s heat-activated, high-voltage insulating resin!
3M Scotchcast Electrical Insulating Resin 4N-B is a two-part, epoxy-based resin designed for professional cable splicing and insulation up to 8 kV. It features a rapid 16-minute gel time at room temperature, self-generates heat to cure without external tools, and withstands temperatures from 32 to 266 °F. With ASTM approval and RoHS compliance, it delivers durable, flexible protection ideal for industrial electrical applications.









| Customer Reviews | 4.8 out of 5 stars 9 Reviews |
R**N
Great product for insulating/waterproofing splices!
Great product for insulating/waterproofing splices!
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