XFasten Self-Fusing Silicone Tape, 1 in x 36 ft, Black, Waterproof

The 1-inch-wide, 36-foot roll of black XFasten self-fusing silicone tape is made from stretchable silicone rubber. Its flexible format conforms to small pipe diameters and tight corners, making it useful for sealing and repair work where a rigid wrap would be harder to apply.

Designed for indoor and outdoor use, the tape is suited to plumbing, hose, marine, automotive, and electrical cable applications. Its self-amalgamating construction forms a water- and air-tight seal, while resistance to heat and weather helps support repairs in demanding environments.

What to know

This tape is made to fuse to itself as it is wrapped, creating a continuous silicone covering for pipes, hoses, and cables. That makes it a practical choice for targeted sealing jobs, from a plumbing repair to protecting an outdoor coaxial cable connection. The material stretches and conforms around smaller diameters and tight turns, helping the wrap follow the shape of the area being covered.

The silicone rubber has a stated tensile strength of 900 PSI and is intended to provide water- and air-tight sealing performance, including for high-pressure pipe leakages. It resists corrosion, harsh solvents, and chemicals, and is designed not to melt up to 260°C (500°F). For electrical applications, it provides insulation up to 600 volts/mil and dissipates heat to help resist melting, weathering, and tearing. It also meets UL 510 standards.

Quick sizing guide

The roll measures 1 inch wide and 36 feet long, a useful format for wrapping repairs and sealing several areas over time. Its narrow width can follow small pipes, hose sections, and cable runs, while the continuous roll lets you cut the amount needed for each repair. Choose this format when you want a flexible silicone wrap for focused sealing or insulation work rather than a rigid repair sleeve.

Tips for day-to-day use

For a repair, position the tape over the area to be sealed and stretch it around the surface so the layers meet and fuse. Follow the shape of the pipe, hose, or cable through corners, keeping the wrap aligned with the section that needs coverage. The material’s flexibility is useful when working around confined spaces or uneven contours, and its weather resistance supports outdoor cable and sealing applications.

Use it for the type of work its silicone construction is designed for: plumbing and pipe sealing, hose repair, marine and automotive tasks, or insulating electrical cables. For electrical work, keep the stated insulation rating of up to 600 volts/mil in mind when selecting tape for the application.

Should you buy it?

Choose XFasten self-fusing silicone tape when you need a stretchable wrap that can seal around pipes, hoses, or cables and adapt to tight corners. The 1-inch by 36-foot roll combines a flexible fit with resistance to water, heat, weather, corrosion, and harsh chemicals, making it a useful repair material for indoor and outdoor maintenance. If your priority is a silicone tape that forms a continuous seal rather than a rigid patch, this format is built for that kind of job.