Wishlist Quick view Scotchcast 3M 4B Electrical Insulating Resin $86.15 Resin, Electrical Insulating, 11.2 cubic inches, 7.4 ounce Package. Resin is a 2-Part Epoxy Insulating and Encapsulating Resin. Use to Splice Solid Dielectric and Oil-Filled Cables up to 8 kV. Add to Cart Add to Wishlist