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Printashrink CPF/FR4

Printashrink CPF/FR4 is a 4:1 shrink ratio heatshrink polyolefin with a working temperature of 135°C. It is a fire retardant sleeve perfect for difficult or irregular shapes where an unusually high shrink ratio is required. Supplied in black as standard, diameters up to 115mm ID are available and can be cut and printed as required.

This 4:1 heatshrink polyolefin tube is designed for commercial or industrial applications where an extremely high ratio is needed to cover irregularly shaped pieces or pass over large components before shrinking. It has excellent electrical, chemical and physical properties and we offer a range of printing and cutting services on this high quality, commercial sleeve making it equally suitable for identification, branding and marking requirements.

Technical Data

  • Shrink Ratio: 4:1
  • Shrink Temperature: 100°C
  • Operating Temperature: -55°C - +135°C
  • Flame Retardant: Yes
  • Colours:
    • Black
  • Sizes: 19 - 115
  • Packing: 1.2 metre lengths, cut to length, cut sleeves
  • Print: Yes, full range of text and logos in all colours
  • Approvals: RoHS compliant
  • Applications / Industries:
    • General
    • Commercial
    • Electrical
    • Electronics
    • Industrial
    • Mechanical
    • Automotive
Properties Typical Values Test Methods
Operating Temperature -55°C - +135°C
Shrink temperature -55°C - +135°C
Shrink Ratio 4:1
Tensile Strength 14Mpa ISO 37
Ultimate elongation 800% min ISO 37
Specific gravity 1.35 max ISO 1183
Water absorption 0.5% max
Flammability Pass ASTM D876
Heat shock (4hrs) No dripping, cracking or flowing ASTM D2671
Low temperature flexibility (4hrs @ -55°C) No cracking ASTM D2671
Heat ageing (168hrs) @ 175°C elongation 350% max ISO 188 & 37
Dielectric strength 22KV/mm min IEC 243
Copper corrosion No corrosion ASTM D2761
Fluid resistance Gasoline, hydraulic fluid, lubricating oil, tensile 5MPa max, elongation 200% max ISO 1817 & 37
Fungus resistance Tensile 10MPa max, elongation 250% max ISO 846 & 37

Free Artwork service

As part of the fully comprehensive print process, we offer a free artwork service.

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Artwork Service iMac

Cable Identification Service

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Cable Identification

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