4:1 shrinkage ratio with adhesive sealing, maximum protection performance

4:1 adhesive-lined colored heat shrink tubing features a dual-wall structure: an eco-friendly irradiated cross-linked polyolefin outer layer and a hot-melt adhesive inner layer. It complies with RoHS environmental standards and contains no harmful substances.
Its core advantages are outstanding:
- 4:1 high shrink ratio for wide compatibility — a 16 mm tube shrinks down to only 4 mm, easily covering cable connectors of various sizes.
- Initial shrink temperature: 80 ℃, full shrink temperature: 110 ℃. It shrinks rapidly and evenly when heated; the hot-melt adhesive layer fully melts and bonds tightly to metal, plastic, rubber and other materials, forming a seamless sealing barrier with nearly zero water absorption.
It meets flame retardant standards, with an operating temperature range of -55 ℃ to 110 ℃, tensile strength ≥ 12 MPa, and elongation at break ≥ 400%.
It is anti-aging and corrosion-resistant, not prone to cracking or falling off during long-term use.
Multiple bright colors allow circuit classification to avoid misoperation.
Full-scenario application with reliable protection and clear identification!
- Used in building electromechanical wiring: color-coded for error prevention, sealed against grout leakage.
- Used in automotive and photovoltaic fields: resistant to high and low temperatures and harsh conditions for stable circuit performance.
- Used in electronic equipment and household maintenance: quickly repairs insulation layers, providing sealing and moisture protection.
Whether for industrial production, infrastructure projects or daily maintenance, its high shrink ratio, strong sealing and clear identification effectively strengthen cable protection and improve construction and maintenance efficiency.