Heat Shrink Tube for Wire Harness
A dual-wall, adhesive-lined heat shrink tube that seals wire-harness splices against moisture while providing strain relief and mechanical protection.
- ASTM D638
Material properties
Technical Specifications
| Properties | Standard | Typical Value |
|---|---|---|
| Physical: | ||
| Tensile Strength | ASTM-D-638 | 16 N/mm² (Min.) |
| Elongation | ASTM-D-638 | 300% (Min.) |
| Water Absorption | ASTM-D-570 | 0.15% (Max.) |
| Low Temperature Flexibility | ASTM-D-2671 | -55% (Max.) |
| Specific Gravity | ASTM-D-792 | 1.4 |
| Thermal: | ||
| Operating Temperature | IEC216 | -55 °C to +125 °C |
| Heat Shock (2500C for 4 hrs) | - | No dripping, cracking or flowing |
| Chemical: | ||
| Copper Corrosion | ASTM-D-2671-B | Good |
| Chemical Resistance | ASTM-D-2671 | Good |
| Electrical: | ||
| Dielectric Strength | ASTM-D-2671 | >20kv / mm |
| Dielectric Constant | ASTM-D-150 | 3.0 (Max.) |
| Volume Resistance | ASTM-D-257 | 10 3 14 Ohm cm (Min.) |
GDWH series sizes
| Part No/Size | D(min) | d(AL) | d (J)(max) | Recovered Wall Thickness(min) | Length (L) mm(min) | |
|---|---|---|---|---|---|---|
| GDWH-1 | 5.75 | 1.25 | 2.65 | 0.60 | 0.60 | 50 |
| GDWH-2 | 7.50 | 1.65 | 3.45 | 0.70 | 1.40 | 50 |
| GDWH-3 | 11.00 | 2.40 | 4.65 | 0.80 | 1.80 | 65 |
| GDWH-4 | 14.00 | 3.00 | 5.90 | 0.90 | 2.15 | 65 |
| GDWH-5 | 18.30 | 4.35 | 7.40 | 0.90 | 2.20 | 75 |
Dimensions & Drawings
A dual-wall tube that environmentally seals automotive wiring splices: the tube is fitted over the splice, and on heating the hot-melt adhesive melts and is squeezed around the crimped or welded connection, preventing moisture entering between the wires. 4:1 shrink ratio.
Covered on this page
- HEAT SHRINKABLE TUBE FOR WIRE HARNESS
- APPLICATIONS:
- WIRE HARNESSING AND DUST PROTECTION COVERS
- Heat Shrinkable Breakouts:
- Heat Shrinkable Boots:
- Terminal Covers:
- End Caps:
Features & Benefits
- Hot-melt adhesive prevents moisture entry between the wires
- 4:1 shrink ratio
- Flame-retardant construction lowers the risk of electrical fires
- Resistant to chemicals, copper corrosion and fungus
- UV stabilized
- Good flexibility with mechanical protection
Applications
- Automotive wiring splices
- Light-duty wire harnessing for electrical and electronic assemblies
- Strain relief for electrical wire connections
- In-line component insulation and protection
Standards & Compliance
- ASTM D638
FAQs
Frequently Asked Questions
What is the Heat Shrink Tube for Wire Harness used for?
It is used for:
- Automotive wiring splices
- Light-duty wire harnessing for electrical and electronic assemblies
- Strain relief for electrical wire connections
- In-line component insulation and protection
Which standards and test methods are quoted for it?
These, with the values in the Technical Specification on this page:
- ASTM D638
Can I get a quote, a sample or a size that is not listed?
Send your cable details, quantity and application with the "Request a Quote or Sample" form at the foot of this page. For a size or variant that is not in the chart, describe what you need there, or use Technical support at the top of the page, and the technical team will confirm what can be supplied.
47+
Years manufacturing
100+
Countries served
140
Products in range
ISO 9001:2015
Certified & tested