Keep various types of electrical connections from corroding with 3M Scotch-Seal Tape 2229. Its tacky mastic adhesive lets the tape stick tightly and helps keep out moisture, even on irregular surfaces, and it resists cracking even after repeated flexing. It's great for sealing ducts and cable end seals. The product's self-healing qualities mean cuts and punctures don't affect its stability in protecting metals, rubbers, synthetic cable insulations and jackets in a wide range of temperatures. This tape is RoHS 2011/65/EU Compliant.