Ultra Thin Wall Very Flexible Flame Retardant RoHS Compliant

W-1-PTCB Ultra Thin Wall Very Flexible Heat Shrink Tubing

Exceptionally thin wall, highly flexible heat shrink tubing designed for tight spaces and lightweight insulation. Flame retardant, low shrink temperature (70°C–110°C), and excellent electrical properties. Ideal for delicate components, wire splicing, and compact electronic assemblies.

Operating Temp

-55°C to 125°C

Shrink Temp

70°C – 110°C

Wall Thickness

Ultra Thin (0.20–0.45mm)

Flexibility

Very High

Key Features

Ultra thin wall – minimizes added bulk
Very flexible – conforms to irregular shapes easily
Flame retardant (VW-1 rating)
Low shrink temperature: 70°C – 110°C – protects sensitive components
Continuous operating temperature: -55°C to 125°C
RoHS compliant, excellent electrical insulation

Dimensions & Packaging

Ultra thin wall – as supplied ID, after recovery ID max, wall thickness, and spool lengths

Inch	mm Size	As supplied Internal Diameter (mm)	After Recovery ID Max (mm)	Wall Thickness Nom (mm)	Standard Package (m/spool)

*Ultra thin wall design offers excellent space savings and flexibility. Other sizes available upon request.

Technical Specifications

Reliable physical, electrical, and chemical properties

Physical Properties

Property	Test Method	Typical Value
Tensile Strength	ASTM D2671	≥10.4 MPa
Elongation	ASTM D2671	≥200%
Tensile Strength after Aging	UL224 158°C×168h	≥7.3 MPa
Elongation after Aging	UL224 158°C×168h	≥100%
Heat Shock (250°C×4h)	UL224	No dripping/cracking

Electrical Properties

Property	Test Method	Typical Value
Dielectric Strength	IEC 243	≥15 kV/mm
Volume Resistivity	IEC 93	≥1×10¹⁴ Ω·cm

Chemical Properties

Property	Test Method	Result
Corrosion Action	UL224 158°C×168h	PASS
Copper Compatibility	UL224 158°C×168h	PASS

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Shrink temperature: 70°C – 110°C · Flame retardant · Ultra thin wall for minimal weight and maximum flexibility.