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HEAT SHRINKABLE TUBE FOR WIRE HARNESS

Heat shrinkable Dual wall tubes are designed to provide environmental sealing in automotive splices. Hot melt adhesive prevents entry of moisture between the wires.

Technical Specification

All dimensions are in mm

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
Flammability	Ul224 Vw1	Pass
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	10¹⁴Ohm cm (Min.)

APPLICATIONS:

The tubing is inserted over the splice area and on heating the tube starts shrinking and the adhesive melts and squeezed around where the wires are crimped or welded connectors.
Light duty wire harnessing for electrical and electronic applications.
Provides electrical insulation and protection for in-line components.
Used as strain relief for electrical wire connection.
Good flexibility and provides mechanical protection.
Flame retardant tubes lowers the risk of electrical fires.

Selection chart - 3:1 & 4.1

SELECTION CHART - 3:1

All dimensions are in mm

Part	Internal Diameter (mm)		Recovered Thickness	Recovered Adhesive	Standard
Number / Size	Supplied	Recovered	(Incl. Adhesive) (mm)	Thickness (mm)	Package
GDW 3/1	3.0 mm	1.0 mm	0.9 mm	0.35 mm.	200m/spool
GDW 6/2	6.0 mm	2.0 mm	1.1 mm	0.40 mm.	100m/spool
GDW 9/3	9.0 mm	3.0 mm	1.3 mm	0.50 mm.	30m/spool
GDW 12/4	12.0 mm	4.0 mm	1.5 mm	0.60 mm.	30m/spool
GDW 18/6	18.0 mm	6.0 mm	1.9 mm	0.70 mm.	30m/spool
GDW 24/8	24.0 mm	8.0 mm	2.2 mm	0.80 mm.	25m/spool
GDW 30/10	30.0 mm	10.0 mm	2.3 mm	0.90 mm.	25m/spool
GDW 39/13	39.0 mm	13.0 mm	2.4 mm	0.90 mm.	25m/spool
GDW 50/17	50.0 mm	17.0 mm	2.4 mm	0.90 mm.	25m/spool

SELECTION CHART - 4:1

All dimensions are in mm

Part	Internal Diameter (mm)		Recovered Thickness	Recovered Adhesive	Standard
Number / Size	Supplied	Recovered	(Incl. Adhesive) (mm)	Thickness (mm)	Package
GDW 4/1	4.0 mm	1.0 mm	1.05 mm	0.40 mm.	200m/spool
GDW 6/1.5	6.0 mm	1.5 mm	1.15 mm	0.40 mm.	100m/spool
GDW 8/2	8.0 mm	2.0 mm	1.20 mm	0.40 mm.	50m/spool
GDW 12/3	12.0 mm	3.0 mm	1.50 mm	0.60 mm.	30m/spool
GDW 16/4	16.0 mm	4.0 mm	1.80 mm	0.60 mm.	30m/spool