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21/02/2026

Heat Shrinkable Tubing 2:1 flexible and transparent
Art.-No. 305-02419 | HFT-B-2.4/1.2-PO-X-CL

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.

Package size

50 m

100 m

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Base Data

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-2.4/1.2-PO-X-CL
Packaging Type	meter
Part No.	305-02419
Product family	Insulation
Type	HFT-B-2.4/1.2

Product Dimensions


For Object Outside Diameter	1.44-2.16 mm
Longitudinal Change After Shrinkage	-5% max.
Recovered Diameter (metric)	1.2mm
Shrink Ratio	2:1
Size (imperial)	3/32"
Supplied Diameter (metric)	2.4mm
Volume Resistance	10¹⁴ Ω cm
Wall Thickness (metric)	0.50mm

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Material and Specifications

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

Logistic and Packaging

Packaging 1 - Weight (kg)	0.273kg
Pkg. Qty.	100m

More Information

Calculators

Calculator tool for Heat Shrink Tubing

Calculator tool for Heat Shrink Tubing

for HFT-B-2.4/1.2 - Art.-No.: 305-02419
In selecting the right shrink tubing size it is important to consider to "80:20 rule". Shrink tubing should recover at least 20% and maximum 80% of its potential shrink range.
According to which specification would you like to check if the selected product is suitable for your application?

diameter

Please enter either the smallest and/or the largest outer diameter of the substrate.

Min mm Max mm

Cross-Section

Please enter either the smallest and/or largest cross-section of the object to be covered.

Min mm² Max mm²

perimeter

Please enter either the smallest and/or largest perimeter of the object to be covered.

Min mm Max mm
Wall thickness calculator

Wall thickness calculator

for HFT-B-2.4/1.2 - Art.-No.: 305-02419

Depending on the substrate dimensions when Heat shrink tubing is recovered the diameter and the wall thickness will change. This Calculator aims to offer a theoretical wall thickness for this situation.Please enter the outer diameter of the object to be covered

Outer diameter of object (A)

mm

Inner diameter of tubing after shrinking (B)

mm

Wall thickness fully recovered ( C )

mm

Solutions

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