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20/02/2026

Heat Shrinkable Tubing 2:1 flexible 6.4/3.2 transparent
Art.-No. 309-50643 | TF24-6.4/3.2-PO-X-CL

3:1 shrink ratio tubing is ideal in many applications.

Heat Shrink Tubing 2:1

TF34 transparent tubing with 3:1 shrink ratio allowing for a wider range of application.

TF24 transparent tubing is ideal to protect wire and cable markers.
The transparency allows for the inspectability of the substrate covered.
TF24 is halogen free.

Package size

60 m

75 m

300 m

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Heat shrinkable tubing 2:1 - flexible and transparent >

Base Data

Application	Protects wire and cable markers subject to abuse, while permitting inspectability of each item covered. Protects electronic components while permitting their identification and inspection.
Behaviour At Low Temperature	not cracking
Behaviour at Heat Shock	not dripping, not fluid, not cracking
Brand Family	TF24
Color	Clear (CL)
Elongation At Heat Aging	250%
Heat Aging Test	168h/175°C
Heat Shock Test	4h/250°C
PART DESCRIPTION	TF24-6.4/3.2-PO-X-CL
Packaging Type	reel
Part No.	309-50643
Product family	Insulation
Type	TF24-6.4/3.2

Product Dimensions


For Object Outside Diameter	3.84-5.76 mm
Longitudinal Change After Shrinkage	+/-5% max.
Printable	No
Recovered Diameter (metric)	3.2mm
Shrink Ratio	2:1
Size (imperial)	1/4"
Supplied Diameter (metric)	6.4mm
Volume Resistance	10¹⁵ Ω cm
Wall Thickness (metric)	0.64mm

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Material and Specifications

Dielectric Strength	30kV/mm
Elongation at break (min.)	450%
Halogen Free	Yes
Material	PO-X
Material	Polyolefin, cross-linked (PO-X)
Min. Shrink Temperature	+230 °F (+110 °C)
Operating Temperature	-67°F to +275°F (-55°C to +135°C)
REACH Conformity	Yes
ROHS compliant	Yes

Logistic and Packaging


Packaging 1 - Weight (kg)	1.02kg
Pkg. Qty.	60m

More Information

Calculators

Calculator tool for Heat Shrink Tubing

Calculator tool for Heat Shrink Tubing

for TF24-6.4/3.2 - Art.-No.: 309-50643
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 TF24-6.4/3.2 - Art.-No.: 309-50643

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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