GLC3 Commercial Grade Thin Wall Tube
GLC3 (3:1) is a heat shrink thin wall tube designed to be used in critical areas such as tunnels and mines.
Choose a size
Selection Chart
| Part number / size | Internal diameter supplied | Internal diameter recovered | Recovered wall thickness(mm) | Spools(m / spool) |
|---|---|---|---|---|
| GLC-3-9.0/3.0 | 9.0 mm | 3.0 mm | 0.75 +0.15 | 25 |
| GLC-3-12.0/4.0 | 12.0 mm | 4.0 mm | 0.75 +0.15 | 25 |
| GLC-3-18.0/6.0 | 18.0 mm | 6.0 mm | 0.85 +0.15 | 25 |
| GLC-3-24.0/8.0 | 24.0 mm | 8.0 mm | 1.00 +0.20 | 25 |
| GLC-3-30.0/10.0 | 30.0 mm | 10.0 mm | 1.15 +0.20 | 25 |
| GLC-3-39.0/13.0 | 39.0 mm | 13.0 mm | 1.15 +0.20 | 25 |
| GLC-3-50.0/17.0 | 50.0 mm | 17.0 mm | 2.50 +0.20 | 25 |
Standard colours: black, white, yellow, red, blue, green. Shrink temperature 125 °C. Source: GALA GLC3 Heat Shrink Tube catalogue sheet, Issue 2, January 2024.
Material properties
Technical Specification
| Properties | Value | Standard |
|---|---|---|
| Physical | ||
| Tensile Strength | 11 N/mm² (Mpa) (min.) | ASTM D638 |
| Ultimate Elongation | 300 % (min) | ASTM D638 |
| Water absorption | 0.5 % (max.) | ASTM D570 |
| Specific Gravity | 1.4 | ASTM D792 |
| Longitudinal Change | -10% (max.) | ASTM D2671 |
| Thermal | ||
| Accelerated Ageing | 150 °C for 168 Hrs. | ASTM D2671 |
| Tensile Strength | 8 N/mm² (Mpa) (min.) | ASTM D638 |
| Ultimate Elongation | 200 % (min) | ASTM D638 |
| 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 GLC3 Heat Shrink Tube catalogue sheet, Issue 2, January 2024.
Dimensions & Drawings
GLC3 is a 3:1 shrink-ratio thin-wall tube for electrical insulation up to 600 V, built for critical areas such as tunnels and mines.
Covered on this page
- Thin Wall Tubes
- GLC3: Commercial Grade Tubing
Features & Benefits
- Shrink ratio 3:1
- For electrical insulation up to 600 volts
- Standard colours black, white, yellow, red, blue, green and clear
- Meets RoHS compliance
Applications
- Cable protection in tunnels and mines
- Electrical insulation up to 600 volts
FAQs
Frequently Asked Questions
What is the GLC3 Commercial Grade Thin Wall Tube used for?
It is used for:
- Cable protection in tunnels and mines
- Electrical insulation up to 600 volts
How do I choose the right size?
A heat-shrink part is chosen by two diameters. As supplied (Internal diameter supplied) it must open wider than the largest thing it has to slide over; after shrinking (Internal diameter recovered) 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.
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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