Di-electric Grease 1/3 oz. Tube PDF Print Email Part #: WA-DEG-1 Di-electric Grease - 1/3 oz. Tube Quantity Price ea. 1 + $6.89 Back to: Electrical Tapes & Dielectric Grease Ask a question about this product 3M Economy Black PVC Electrical Tape Di-electric Grease 5 oz. Tube Description Di-electric Grease helps prevent corrosion and keeps moisture out of sensitive electrical connections. Use on spark plug wires, trailer hitch connections and other sensitive areas. Rated for -40F to 400F. Comes in a compact 1/3 oz tube.