Tinned Copper Core: Electrical butt connectors use a heavy-duty copper core, strong crimp, and higher conductivity.
Waterproof Durable: Insert the wires to be connected, crimp both sides with crimping pliers, and then heat with a heat gun; butt splice connectors are very strong.
3:1 Shrink Ratio: Marine grade butt connectors heat shrink provides high tensile strength and enough hot melt adhesive inside the tubing to ensure waterproof performance; your wires will never slip out of the wire connectors.
Wide Application: Waterproof butt connectors are durable, stable, waterproof, and corrosion-resistant and are used in the automotive, marine, electrical, and electronic industries.