Heatshrink DR 25.1/4 Raychem (Black)

Genuine Raychem heatshrink tubing in 25.1mm diameter with 4:1 shrink ratio, supplied in black. This industrial-grade adhesive-lined tubing provides superior environmental sealing for motorsport and performance wiring installations. The dual-wall construction combines a polyolefin outer layer with a thermoplastic adhesive inner layer that flows and seals upon heating. Ideal for protecting splice joints, cable breakouts and terminal connections in engine bay and underbonnet applications where moisture, vibration and temperature extremes demand reliable long-term protection. Meets stringent automotive and aerospace specifications for professional harness fabrication.