RED 12MM HEATSHRINK 1M LENGTH
SKU: SUR/HSDWA120RD
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Heavy-Duty Dual Wall Heat Shrink Tubing | 12mm Diameter, 3:1 Ratio (Red - 1m Length)
Protect, insulate, and fully waterproof your heavy-gauge electrical joins with this premium 12mm Red Dual Wall Heat Shrink Tubing. Supplied in a convenient 1-metre length, this commercial-grade polyolefin tubing features an advanced 3:1 shrink ratio, meaning it collapses down to a tight 4mm diameter to provide a seamless, form-fitting protective barrier over large cable lugs, splices, and battery terminals.
Engineered with an internal hot-melt adhesive lining, the outer wall shrinks tightly under heat while the inner layer melts and flows. This encapsulates the entire joint, creating a permanent, watertight, and dustproof environment seal that completely blocks out moisture, salt, and atmospheric corrosion.
Key Features
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Advanced 3:1 Shrink Ratio: Highly versatile sizing that easily slides over bulky terminals or lugs and shrinks down small enough to grip the bare cable tightly.
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Dual Wall Co-Extrusion: Built with a flame-retardant outer layer for ultimate physical toughness and a hot-melt adhesive inner liner for a flawless, watertight seal.
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Superior Strain Relief: Vastly improves the mechanical strength of the cable transition, absorbing vibrations and physical pulling forces to prevent structural failures.
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Flame and Chemical Resistant: Manufactured to withstand extreme engine bay environments, resisting fuels, hydraulic oils, acids, and environmental solvents.
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Industrial Compliance: Crafted to comply with RoHS, REACH, and ISO manufacturing standards, making it the choice for professional trade installations.
Technical Specifications
| Feature | Specification |
| Product Type | Dual Wall Adhesive-Lined Heat Shrink |
| Color | Red (Ideal for positive DC power lines) |
| Supplied Diameter | 12mm |
| Fully Shrunk Diameter | 4mm |
| Shrink Ratio | 3:1 (Longitudinal Change: ≤ ±8%) |
| Supplied Length | 1 Metre |
| Material Profile | Premium Polyolefin + Hot-Melt Adhesive Layer |
| Operating Temperature | -45°C to +125°C |
| Shrink Temperature | Starts at 125°C (Fully recovered up to 200°C) |
| Voltage Rating | 600V Continuous |
Applications
The ultimate solution for professional insulation and weatherproofing on medium-to-large wiring setups, including:
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Sealing 25mm² and 35mm² battery cable lugs and eyelet terminations
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Insulation for 12V / 24V / 48V positive DC power distribution bars and dual battery setups
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Marine electrical overhauls, bilge pump links, and boat trailer harness protection
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4WD accessory circuits, under-bonnet relay wiring, and winch power connections
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Commercial switchgear, solar arrays, and outdoor industrial junction points