2:1 Shrink Ratio Adhesive Lined -55°C to 125°C

W-1-SB(2X) Dual Wall Adhesive-Lined Heat-Shrink Polyolefin Tubing

Adhesive lined heat shrink tubing with environmental sealing capability for a wide variety of electrical applications, including automotive and marine wire harness, wire splices, breakouts, and connector-to-cable transitions.

2:1 shrink ratio

Longitudinal shrink ratio: ≤+8%

Outer jacket flame retardant, inner adhesive self-extinguished

Super sealing against water, moisture or other contaminants

Continuous operating temperature: -55°C to 125°C

Shrink temperature: 120°C

Dimensions & Packaging

As supplied ID, after recovery dimensions, and standard spool lengths

Inch	mm	As supplied ID (mm)	After Recovery ID (mm)	Total Wall Thickness (mm)	Adhesive Thickness (mm)	Spool Length (m/spool)

*Standard package: meters per spool (m/spool) as indicated.

Technical Data

Material properties and hot melt adhesive performance

Tubing Properties

Test Item	Test Method	Test Result
Tensile Strength (MPa)	ASTM D2671	≥10.4
Elongation (%)	ASTM D2671	≥300
Tensile Strength after Aging (MPa)	UL224 158°C×168h	≥7.3
Elongation after Aging (%)	UL224 158°C×168h	≥200
Dielectric Strength (kV/mm)	IEC 243	≥15
Volume Resistance (Ω·cm)	ASTM D876	≥10¹⁴

Hot Melting Adhesive Property

Test Item	Test Method	Test Result
Water absorption ratio	ASTM D570	<0.2%
Softening point	ASTM E8	95°C
Strength of peeling (PE)	ASTM D1000	120 N/25mm
Strength of peeling (AL)	ASTM D1000	80 N/25mm

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