High Shrink Ratio Heat Shrink Tube 5:1 (GMW 5x)

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High Shrink Ratio Heat Shrink Tube 5:1 (GMW 5x) Specification

Size
30 mm to 160 mm supplied ID; 6 mm to 32 mm recovered ID

Feature
5:1

Installation Guideline
Propane torch, shrink from the centre outwards (as for GMW tubing)

Coating Type
Optional hot-melt adhesive lining

Product Type
High shrink ratio heat shrink tube

Tensile Strength
12 N/mm2 min (ASTM D638)

Thickness
4.3 mm to 5.0 mm after recovery (+/-10%)

Application
Large diameter transitions between cables, connectors and back shells; cable repair; connector sealing

Usage & Applications
Large diameter transitions between cables, connectors and back shells; cable repair; connector sealing

Color
Black

Operating Temperature
-40 deg C to +110 deg C continuous

Material
Cross-linked polyolefin, carbon black UV protected

Temperature Resistance
Stable performance from -40C to +125C

Package Type
Individually packed or in bulk rolls/sleeves

Repair Method
Heat shrink, wrap-around, spiral or patch style

Shrink Ratio
3:1 or 4:1 (depending on size/type)

Sealing Type
Waterproof and environmental sealing

Shelf Life
Up to 36 months if stored as recommended

Recommended Tools
Hot air gun, scissors/cutter

Typical Repair Application
Quick field repair or emergency cable restoration

Adhesive Type
Hot melt (integral adhesive lining for waterproof sealing)

Liner
Optional adhesive lining

Maximum Continuous Voltage Withstand
Up to 1000V

RoHS Compliance
Yes

Flexibility
Excellent for use on bent or irregular cable surfaces

Environmental Resistance
Resistant to chemicals, oils, fungus, and UV

UV Resistance
Yes

Flame Retardant
Yes

Minimum Shrink Temperature
120C

About High Shrink Ratio Heat Shrink Tube 5:1 (GMW 5x)

Standard heat-shrink tube recovers to about a third of its supplied diameter. GMW 5x is made to shrink much further, to one fifth of its supplied inside diameter, so a single tube can pass over a bulky connector or back shell and still grip the much thinner cable behind it. That makes it the practical choice where a joint or termination has a large step in diameter, and it lets maintenance teams cover a wide range of jobs with fewer stocked sizes.

The tube is cross-linked polyolefin of the same family as Gala's GMW medium-wall tubing, with a thick recovered wall of 4.3 to 5.0 mm. Its compound contains carbon black against UV. An optional hot-melt adhesive lining gives a sealed, moisture-resistant cover.

Typical work includes repairing damaged cable sheaths, sealing the rear end of connectors, and covering transitions between cables and components where the sizes on each side differ greatly.

Order by code, size and length, adding "U" for tube without adhesive, for example GMW 5x 30/6 U 1000. Like other GMW tubing it is shrunk with a propane torch, working from the centre outwards; the shrink temperature is 125 deg C.

Manufactured by Gala in India. Datasheet and size selection on request.

Specifications

Brand: Gala
Product type: High shrink ratio heat shrink tube
Material: Cross-linked polyolefin, carbon black UV protected
Colour: Black
Operating temperature: -40 deg C to +110 deg C continuous
Shrink ratio: 5:1
Size range: 30 mm to 160 mm supplied ID; 6 mm to 32 mm recovered ID
Wall type / thickness: 4.3 mm to 5.0 mm after recovery (+/-10%)
Adhesive / sealant: Optional hot-melt adhesive lining
Standards tested to: Test methods quoted on GSF's datasheet - ASTM D638, ASTM D2671, ASTM D149, ASTM D257
Application: Large diameter transitions between cables, connectors and back shells; cable repair; connector sealing
Installation: Propane torch, shrink from the centre outwards (as for GMW tubing)
Country of origin: India
Shrink temperature: 125 deg C
Tensile strength: 12 N/mm2 min (ASTM D638)
Elongation at break: 350% min
Dielectric strength: 12 kV/mm min on 2 mm wall (ASTM D149)
Volume resistivity: 1 x 1012 ohm.cm min (ASTM D257)
Ordering format: code + size + U (without adhesive) + length in mm, e.g. GMW 5x 30/6 U 1000

Sizes

GMW 5x 30/6 | D 30 / d 6 | T 4.3 mm
GMW 5x 40/8 | D 40 / d 8 | T 4.3 mm
GMW 5x 50/10 | D 50 / d 10 | T 4.3 mm
GMW 5x 60/12 | D 60 / d 12 | T 4.5 mm
GMW 5x 75/15 | D 75 / d 15 | T 4.5 mm
GMW 5x 90/18 | D 90 / d 18 | T 4.5 mm
GMW 5x 105/21 | D 105 / d 21 | T 5.0 mm
GMW 5x 115/23 | D 115 / d 23 | T 5.0 mm
GMW 5x 130/26 | D 130 / d 26 | T 5.0 mm
GMW 5x 140/28 | D 140 / d 28 | T 5.0 mm
GMW 5x 160/32 | D 160 / d 32 | T 5.0 mm

Applications: Cable manufacturers and cable repair teams, electrical maintenance, connector and harness assembly, mining and tunnelling cables, marine and offshore, oil and gas, power utilities

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