Adhesive lined butt connectors are specially designed for waterproof heat shrink applications. Butt splices provide quick and reliable crimp type connections and wire repairs. They are available for a wide variety of wire size and insulation types. Simply crimp both ends for a long lasting, secure connection. Designed for use on 12-10 gauge wire.Resists salt water, oil, gasoline and other environmental contaminantsAdhesively lined to ensure it waterproofs and environmentally seals electrical connections when crimped or heatedConstructed with heat shrink insulationResists salt water, oil, gasoline and other environmental contaminantsRated at 600 Volt Max2:5:1 Shrink ratioDesigned for use on 12-10 gauge wire.Adhesively lined to ensure it waterproofs and environmentally seals electrical connections when crimped or heatedConstructed with heat shrink insulation