Black 12mm Heat Shrink 3:1 w/Adhesive | 15 cm x 4 Pcs.

This Black 12mm Heat Shrink with a 3:1 shrink ratio and integrated adhesive lining offers a reliable solution for sealing and insulating electrical connections. Each pack contains four 15 cm lengths, providing a practical quantity for small repairs, custom cable assemblies, or protecting splices in automotive, marine, and household electronics. The adhesive inner layer flows when heated, creating a water-resistant barrier that prevents moisture ingress and corrosion, making it ideal for outdoor or damp environments where standard heat shrink would fail.

The 3:1 shrink ratio allows the tubing to contract to one-third of its original 12mm diameter, accommodating a wide range of wire gauges and irregular shapes. The polyolefin material is durable and flexible after shrinking, maintaining a tight grip around connectors and terminals. When heated evenly with a heat gun, the tubing conforms snugly, while the adhesive seals gaps and provides strain relief. This product is suitable for use with battery terminals, sensor wires, or any application requiring a robust, long-lasting insulation layer.

With a simple application process and dependable performance, this heat shrink tubing delivers professional-grade results for both hobbyists and technicians. Its compact 15 cm lengths are easy to handle and store, ensuring you have the right size for targeted repairs without waste.