3M™ Scotchcast™ Electrical Resin 2131 Is A 2 Part, Flame Retardant Compound, Useful For Coating Cable Jackets When Splicing or Repairing Mine and Portable Cables. This Permanent, Polyurethane, Liquid Type Resin Has A Unique Formulation Used In Rugged Conditions. The High Dielectric Strength Offers A Very Good Electrical Insulating Property to The Resin.