GLC Thin Wall Heat Shrink Tube
Thin-wall heat shrink polyolefin tubing for light-duty wire harnessing and busbar insulation, with a yellow/green striped GSC/YG variant for ground-wire identification.
- Electrical insulation up to 3.3 kV
- ASTM D638
- ASTM D570
- ASTM D2671
Choose a size
Selection Chart
| Part number / size | Supplied ID(min.) | Recovered ID(max.) | Recovered wall thick.(±10%) | Spools(m / spool) | Cut lengths 1.2 m(per box) |
|---|---|---|---|---|---|
| GLC 6.0/3.0 | 6.0 | 3.0 | 0.56 | 100 | 200 |
| GLC 7.0/3.5 | 7.0 | 3.5 | 0.56 | 100 | 200 |
| GLC 8.0/4.0 | 8.0 | 4.0 | 0.56 | 100 | 175 |
| GLC 10.0/5.0 | 10.0 | 5.0 | 0.56 | 100 | 150 |
| GLC 12.7/6.35 | 12.7 | 6.35 | 0.56 | 100 | 120 |
| GLC 14.0/7.0 | 14.0 | 7.0 | 0.69 | 100 | 100 |
| GLC 16.0/8.0 | 16.0 | 8.0 | 0.69 | 100 | 100 |
| GLC 18.0/9.0 | 18.0 | 9.0 | 0.69 | 100 | 80 |
| GLC 20.0/10.0 | 20.0 | 10.0 | 0.78 | 100 | 65 |
| GLC 25.0/12.5 | 25.0 | 12.5 | 0.78 | 50 | 40 |
| GLC 30.0/15.0 | 30.0 | 15.0 | 0.87 | 50 | 30 |
| GLC 40.0/20.0 | 40.0 | 20.0 | 0.97 | 50 | 20 |
| GLC 50.0/25.0 | 50.0 | 25.0 | 0.97 | 25 | 15 |
| GLC 60.0/30.0 | 60.0 | 30.0 | 0.96 | 25 | 10 |
| GLC 70.0/35.0 | 70.0 | 35.0 | 1.10 | 25 | 10 |
| GLC 80.0/40.0 | 80.0 | 40.0 | 1.27 | 25 | 10 |
| GLC 100/50.0 | 100.0 | 50.0 | 1.17 | 25 | 5 |
Standard colour: black. Shrink ratio 2:1. Source: GALA GLC Thin Wall Tube catalogue sheet, Issue 2, January 2024.
Material properties
Technical Specification
| Properties | Value | Standard |
|---|---|---|
| Physical | ||
| Tensile Strength | 10 N/mm² (Mpa) (min.) | ASTM D638 |
| Ultimate Elongation | 200 % (min) | ASTM D638 |
| Water absorption | 0.15 % (max.) | ASTM D570 |
| Longitudinal Change | -10% (max.) | ASTM D638 |
| Thermal | ||
| Operating Temperature | -55 to +125 °C | IEC 216 |
| Low Temperature Flexibility (-55 °C for 4 hrs.) | No Cracking | ASTM D2671 |
| Electrical | ||
| Dielectric Strength | >15 kV/mm. | ASTM D2671 |
| Di-electric Constant | 5.0 (max.) | ASTM D150 |
| Volume Resistivity | 1 x 10¹⁴ Ohm.cm (min) | ASTM D257 |
Source: GALA GLC Thin Wall Tube catalogue sheet, Issue 2, January 2024.
Dimensions & Drawings
GLC thin-wall tube insulates light-duty wire harnessing and busbar connections up to 3.3 kV. The GSC/YG variant is flame-retardant with a yellow/green stripe for instant ground-wire identification.
Covered on this page
- Thin Wall Tubes
- GLC : Thin Wall Tube
- GLC Series :
- GSC/YG Series :
Features & Benefits
- Halogen free and RoHS compliant
- 2:1 shrink ratio
- Resistant to chemicals, copper corrosion and fungus
- UV stabilized
- GSC/YG series adds a dual yellow/green stripe for instant ground-wire identification
Applications
- Light-duty wire harnessing for electrical and electronic applications
- Busbar insulation for switchgear
- Electrical insulation up to 3.3 kV
- Ground-lead identification on electrical equipment (GSC/YG series)
Standards & Compliance
- ASTM D638
- ASTM D570
- ASTM D2671
- ASTM D150
- ASTM D257
FAQs
Frequently Asked Questions
What is the GLC Thin Wall Heat Shrink Tube used for?
It is used for:
- Light-duty wire harnessing for electrical and electronic applications
- Busbar insulation for switchgear
- Electrical insulation up to 3.3 kV
- Ground-lead identification on electrical equipment (GSC/YG series)
How do I choose the right size?
A heat-shrink part is chosen by two diameters. As supplied (Supplied ID (min.)) it must open wider than the largest thing it has to slide over; after shrinking (Recovered ID (max.)) it must close smaller than the smallest thing it has to grip. Measure both on your cable or busbar and pick the first code in the selection chart that satisfies both.
How is it installed?
Clean and degrease the surface, position the part, then shrink it with a gas torch or a hot-air gun: keep the heat moving round it with a smooth, brushing motion so it recovers evenly without scorching. Start at one end and work steadily along to the other.
Which standards and test methods are quoted for it?
These, with the values in the Technical Specification on this page:
- ASTM D638
- ASTM D570
- ASTM D2671
- ASTM D150
- ASTM D257
Where can I download the datasheet?
From the "Download datasheet" button at the top of this page, or here:
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.

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