1/2″ Heat Shrink Tubing 2.5:1 Ratio Semi-Rigid Adhesive-Lined 12″ Length 4 Pack

This 1/2″ ID 2.5:1 semi-rigid adhesive-lined heat shrink tubing is engineered to seal and protect 8–4 AWG wire connections in harsh environments. The outer polyolefin layer is semi-rigid and flame-retardant for abrasion resistance, while the internal adhesive lining flows when heated to create a moisture-resistant bond over terminals and splices.

Specifications & Features

• Shrink Ratio: 2.5:1
• Pre-shrink Inner Diameter: 1/2″
• Wire Compatibility: 8–4 AWG
• Wall Type: Semi-rigid dual wall with internal adhesive
• Adhesive-lined interior bonds to wires and connectors to resist moisture and corrosion
• Outer jacket is flame-retardant for high-heat or vibration-prone areas
• Available Colors: Black, Blue
• Ideal for battery cables, marine harnesses, and automotive splices