Ancor Adhesive Lined Heat Shrink Tubing (ALT) - 1/4" x 6" - 10-Pack - Black

Ancor Adhesive Lined Heat Shrink Tubing (ALT) in 1/4" x 6" format is the marine electrician's go-to solution for waterproof wire protection and repair on boats of all sizes. After decades on the water, any serious angler or boater knows that corroded connections and exposed wiring lead to electrical gremlins that can leave you stranded miles offshore. This 10-pack of black heat shrink tubing addresses exactly that problem—sealing and insulating wire splices, terminal connections, and damaged wire jackets with the reliability that saltwater and freshwater environments demand.

The adhesive-lined design sets Ancor ALT apart from standard heat shrink; when heated, the inner adhesive melts and flows around the wire, creating a dual moisture barrier that prevents corrosion and shorts. Each tube measures 1/4" in diameter and 6" in length—ideal for terminal lugs, splice joints, and battery connections where space is tight but protection cannot be compromised. The black polyolefin material withstands UV exposure, salt spray, and temperature fluctuations that are routine in marine environments, maintaining flexibility and seal integrity even after years of exposure to sun, water, and vibration.

Professional marine electricians and experienced boat owners rely on Ancor heat shrink tubing for bilge pump wiring, switch connections, through-hull fittings, and any splice that needs to stay dry and corrosion-free. The 10-pack provides enough coverage for a complete rewire or multiple repairs, ensuring that your electrical connections remain safe and reliable in challenging marine conditions.