This 0.40″ ID 3:1 heavy wall adhesive-lined heat shrink tubing is engineered for sealing and insulating electrical connections in extreme environments. It fits 126 AWG wires and features a rugged dual-wall construction with a thermoplastic adhesive lining that provides exceptional strain relief, abrasion resistance, and moisture protection. Ideal for battery splices, terminals, and buried or submerged cable repairs.

Specifications & Features

• Shrink Ratio: 3:1
• Pre-shrink Inner Diameter: 0.40″
• Length: 6 inches
• Wire Compatibility: 126 AWG
• Wall Type: Heavy wall with adhesive lining
• Thermoplastic adhesive lining seals out moisture, oil, and contaminants
• Ideal for direct burial, underwater, and automotive battery connections
• Meets UL486D for electrical connections
• Available Colors: Black, Red