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21/02/2026

Heat Shrinkable Tubing 2:1 flexible and transparent
Art.-No. 305-25438 | HFT-B-25.4/12.7-PO-X-CL

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3:1 shrink ratio tubing is ideal in many applications.
Transparent HFT-B tubing is often fitted as a see through protective sleeve over cable markers.

    • This flexible heat shrink tubing has many excellent properties including fast shrinking, easy handling, good mechanical strength and resistance against chemicals and solvents.
    • It is UL-224 and CSA approved, easy to print on and available in a wide range of colours and internal diameters up to 4 inches (101.6mm) wide.
    • HFT-A is a coloured, self-extinguishing tubing.
    • HFT-B is transparent and halogen free.
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    Application This high performance thin wall tubing is used extensively for electrical and mechanical protection. It is also well proven for sleeve marking to identify wiring circuits.

    The transparent version is used for bundling and cable jacketing where visual inspection is required. It is often fitted as a see through protective sleeve over cable markers.
    Brand Family HFT-B-Series
    Color Clear (CL)
    Heat Shock Elongation 540%
    Heat Shock Tensile Strength 25MPa
    Heat Shock Test 4h/200°C
    PART DESCRIPTION HFT-B-25.4/12.7-PO-X-CL
    Packaging Type lengths
    Part No. 305-25438
    Product family Insulation
    Type HFT-B-25.4/12.7
    For Object Outside Diameter 15.24-22.86 mm
    Longitudinal Change After Shrinkage -5% max.
    Recovered Diameter (metric) 12.7mm
    Shrink Ratio 2:1
    Size (imperial) 1"
    Supplied Diameter (metric) 25.4mm
    Volume Resistance 10¹⁴ Ω cm
    Wall Thickness (metric) 0.90mm
    Dielectric Strength 25kV/mm
    Elongation at break (min.) 540%
    Halogen Free Yes
    Material PO-X
    Material Polyolefin, cross-linked (PO-X)
    Min. Shrink Temperature +275 °F (+135 °C)
    Operating Temperature -67°F to +275°F (-55°C to +135°C)
    ROHS compliant Yes
    UL Listed (US and Canada) No
    Pkg. Qty. 50m

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    Art.-No.: 305-25438 Contact
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