SKU: 143-1012V

Red Adhesive-Lined Heat Shrink Tubing 3:1

For extra-tight, waterproof, and reliable insulation

Our 3:1 adhesive-lined heat shrink tubing provides a secure, stable, and completely sealed insulation for cables and terminals.
The inner layer of heat-activated adhesive bonds tightly to the cable during shrinking, creating a moisture-, dirt-, and corrosion-resistant seal.

This makes it the perfect choice for marine, automotive, and outdoor electrical installations, where extra sealing and durability are essential.
Supplied in a practical dispenser box that keeps the tubing clean, organized, and tangle-free.

Key Benefits:

Adhesive-lined interior – forms a watertight and dirt-resistant seal
3:1 shrink ratio – easily adapts to different cable sizes
Excellent electrical and mechanical properties – reliable insulation and strain relief
Halogen-free, low smoke, and non-toxic – environmentally safe and user-friendly
Highly resistant to acids, corrosion, and abrasion – ideal for harsh environments
Perfect for marine and automotive applications – ensures long-lasting protection

In stock

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Packaging

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Red Adhesive-Lined Heat Shrink Tubing 3:1

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Black Adhesive-Lined Heat Shrink Tubing 3:1

Heat Shrink Tubing, Heat Shrink Tubing 3:1

For extra-tight, waterproof, and reliable insulation Our 3:1 adhesive-lined heat shrink tubing provides a secure, stable, and completely sealed insulation for cables and terminals. The inner layer of heat-activated adhesive bonds tightly to the cable during shrinking, creating a moisture-, dirt-, and corrosion-resistant seal.

Technical information

Shrink ratio: 3:1
Material: Halogen- and cadmium-free polyolefin with internal adhesive lining
Minimum shrink temperature: 100 °C
Operating temperature: –55 °C to +125 °C
Tensile strength (room temp): min. 10.4 MPa / 12 MPa
Elongation at break (room temp): min. 200% / 400%
Tensile strength after aging (158 °C, 168 h): min. 7.3 MPa / 10.8 MPa
Elongation after aging (158 °C, 168 h): min. 100% / 300%
Dielectric strength (unaged): withstands 2.5 kV for 1 min without breakdown
Dielectric strength (aged): ≥ 50% of unaged value for 1 min without breakdown
Corrosion (158 °C, 168 h): none
Longitudinal shrinkage: ≤10% / ≤5%
Low-temperature flexibility (–40 °C, 4 h): no cracking
Heat shock (250 °C, 4 h): no cracking
Breakdown voltage: >19.7 kV/mm / >25 kV/mm
Volume resistivity: ≥10¹⁴ Ω·cm
Flame rating: VW-1
Certifications: UL approved, RoHS compliant
Available colors: Red, black, or yellow

Table of Skyllermarks 3:1 Heat Shrink Tubing with adhesive in Boxes – Various Cable Sizes 1.5–120 mm², Available in Red, Black, and Yellow, Lengths from 3 to 5 Meters — Click the table to view a larger image.

Wired and Inspired

How to Use

Place the heat shrink tubing over the cable and crimp terminal.
Make sure the contact surface of the terminal is clean and free from debris.
Apply heat evenly with a heat gun until the tubing shrinks tightly and the adhesive activates, creating a strong and sealed insulation.

The adhesive-lined 3:1 heat shrink tubing combines high shrink flexibility with strong environmental sealing.
When heated, the inner adhesive melts and bonds to the cable surface, forming a durable waterproof insulation that protects against moisture, vibration, and corrosion — ideal for marine, vehicle, and industrial electrical systems.

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