Pico Wiring 8231A 1/4" Waterproof Black Heat Shrink Tubing 4 Foot

The Pico Wiring 8231A is a professional-grade waterproof heat shrink tubing designed for automotive, marine, and electrical applications where moisture protection is critical. This 1/4-inch inside diameter tubing comes in a 4-foot length, providing ample material for multiple wire repairs and connections.

Dual-Wall Construction:

This heat shrink tubing features a rigid polyolefin dual-wall design that provides superior protection compared to standard single-wall tubing. The outer wall shrinks while the inner wall melts into voids, creating a completely moisture proof seal upon cooling. This adhesive-lined construction ensures that water, dirt, and corrosion cannot penetrate the connection.

Key Features:

• 3:1 Shrink Ratio: Shrink ratio 3 to 1 allows the tubing to accommodate a wide range of wire sizes and irregular shapes
• Wide Temperature Range: Operating temperatures -67°F to 230°F (-55°C to 110°C) for reliable performance in extreme conditions
• Easy Installation: Applies with standard heat gun at temperatures between 200°F to 300°F
• Professional Quality: Made from rigid polyolefin material for long-lasting durability
• Precise Sizing: Tubing is measured by its inside diameter before shrinking

Ideal for marine wiring, automotive electrical repairs, trailer lighting, RV systems, and any application requiring waterproof wire protection. The black color provides a professional appearance and UV resistance for outdoor applications.