This 3:1 heat shrink tubing provides a superior, secure fit—shrinking to one-third of its original size to tightly seal wires, splices, and connectors. The adhesive-lined interior melts as it shrinks, forming a waterproof and oil-proof bond perfect for automotive wiring, marine environments, outdoor repairs, and general electrical use.
The 50 ft continuous roll allows you to cut exactly the length you need, making it far more versatile than pre-cut assortments. Built for durability, the tubing resists abrasion, heat, oil, and tough environmental conditions while remaining flexible for easy installation. Fully UL-listed, it meets rigorous safety and flame-resistance standards, ensuring dependable performance in high-demand applications.
Key Features & Benefits
• 3:1 Shrink Ratio – Shrinks to one-third size for a tighter, more secure seal than 2:1 tubing.
• Adhesive-Lined Waterproof Seal – Protects against water, oil, and moisture in harsh environments.
• 50 ft Flexible Roll – Cut custom lengths for cleaner, more efficient wiring jobs.
• Durable Insulation – Resists heat, abrasion, and oils for long-lasting protection.
• UL-Listed Safety – Meets strict electrical and automotive safety standards.
