Medium-wall heat shrink tubing: CFM
CFM is a medium-wall, cross-linked polyolefin heat shrink tubing designed for low-voltage electrical and mechanical protection. The product category (heat-shrink tubing) is evident from the manufacturer's data: the material shrinks when heated, providing mechanical protection, environmental sealing, and insulation for cables and joints.
What the product does
CFM forms a mechanically protective sleeve and completes an environmental seal at joints and terminations. It is supplied in a medium-wall version with the option of an internal adhesive lining (adhesive-lined) for complete environmental protection and insulation, or without adhesive depending on requirements.
Key features
- Material: cross-linked polyolefin (medium wall)
- Shrink ratio 3:1
- Option for adhesive lining (lined, D) or unlined (U)
- Color and print options: black, printed or unprinted
Typical applications
- Strain relief and environmental protection for cable joints
- As a splice cover for electrical cables
- Use in HVAC systems for pipes and ducts (specified in manufacturer's data)
- Repair of insulation or jacket surfaces on low-voltage cables
Documentation
See datasheet from manufacturer
Specifications
- Product name: CFM (medium-wall crosslinked polyolefin heat-shrink tubing)
- Shrink ratio: 3:1
- Min. shrink temperature: 120°C
- Continuous operating temperature: -55°C to 110°C
- Size (2750): expanded inner diameter 69.9 mm, recovered inner diameter 25.4 mm
- Nominal wall thickness (2750): 2.5 mm
- Typical length: 1.2 m (48 in)
- Color/options: black; printed or unprinted; adhesive lined (D) or unlined (U)
- Tensile Strength: 2,100 psi (14.5 MPa)
- Elongation: 550%
- Hardness (Shore D): 50D
- Dielectric Strength: 500 V/mil (20 kV/mm)
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