ATUM heatshrink size 4/1 Clear (4.0mm down to 1.0mm)

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ATUM heatshrink size 4/1 Clear (4.0mm down to 1.0mm)
RAYCHEM ATUM Heat Shrink - ATUM-4/1-X-SP - Used to seal back-end connectors, wire splices, break-outs, cable jackets and electrical components.
25 mtrs - See below for more pack options
Excl. VAT: £85.05 Incl. VAT: £102.06

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Excl. VAT: £85.05 Incl. VAT: £102.06
Product Info


High Expansion ratio, adhesive-lined heat-shrinkable tubing

ATUM tubing is radiation-crosslinked, heat-shrinkable, and adhesive-lined to provide environmental sealing in a wide variety of electrical applications. The product is typically used to seal connector backshells and cable breakouts and to repair damaged cable.

ATUM has an internal adhesive coating that, when heated, melts and flows to form a positive environmental barrier to prevent moisture penetration.The coating adheres to the outer tubing and the surface below, creating an excellent barrier to moisture penetration. The adhesive bonds to a wide variety of plastics, rubbers, and metals including PVC, polyethylene, rubber and aluminium.

Because the tubing and adhesive are flexible, the moisture seal withstands bending of the substrate. The flexibility makes ATUM tubing ideal bfor cable repair.

ATUM tubing is available with expansion ratios of both 3:1 and 4:1. These high expansion ratios make if possible to repair cables without removing connectors. Just a few sizes of ATUM tubing cover a wide range of substrates.

ATUM is UL-recognized at 110°C, 600V.

Features & Benefits:

  • Environmentally seals and protects
  • Excellent mechanical protection
  • 4:1 shrink ratio
  • Bonds to plastics, rubbers and metals, including PVC, polyethylene, rubber & aluminium
  • UL Approved: E85381


Specifications / Approvals:

  • RK-6024 (Clear and Colours Only)
  • RW-2063 (Black Only)
  • AMS-DTL-23053/4 Class 3
  • UL Approved: E85381


Operating Temperature:

  • From -55°C to +110°C



  • Minimum shrink temperature +80°C
  • Minimum full recovery +110°C



Additional Information

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