PTFE Heat Shrink Tubing

Our PTFE heat shrink tubing is designed to provide superior insulation, protection, and durability for a wide range of applications.

Available in shrink ratios of 1.7:1 and 4:1, our heat shrink tubing ensures a tight, secure fit around components, effectively protecting wires, cables, and other sensitive parts.

With a focus on precision and reliability, we also offer custom sizes and lengths to suit specific project needs, ensuring optimal performance and longevity.

Our PTFE Shrink Tubing Performance Characteristics

  Characteristic

Standard

Value

Density

ASTM D792

2.12 - 2.17g/cc

Hardness

Shore D

60D

Tensile Strength

ASTM D638

27 - 35MPa

Elongation

ASTM D638

280 - 400%

Elongation at Break

ASTM D638

250 - 330%

Tensile Strength

ASTM D638

19 - 35MPa

Compressive Strength

ASTM D695

17MPa

Maximum Continuous Working Temperature

20000h

-85 - 200°C

Dielectric Constant

ASTM D150, 103Hz

2.1

Surface Resistivity

ASTM D257, 25°C

>1017

Water Absorption (%)

24h

<0.01

1.7:1 PTFE Heat Shrink Tubing

1.7 to 1 PTFE Shrink Tubing

1.7:1 Shrink Ratio

This tubing will shrink to 1.7 times its original diameter when heat is applied. It offers moderate shrinkage, typically used for situations where only a small amount of shrinkage is needed.

Applications

Often used in applications where minimal shrinkage is required, such as in delicate wiring or components that do not need the more extreme shrinkage. It is suitable for smaller connectors or cables that need a snug fit.

Strength and Durability

1.7:1 provides more precision and control for smaller or more delicate components

Size

ID Before Shrinkage

Wall Thickness

Before Shrinkage

ID After Shrinkage

Wall Thickness After Shrinkage

φ0.5

0.7mm

0.10mm/0.15mm

≤0.40mm

0.15mm/0.25mm

φ1.0

1.0mm

0.10mm/0.15mm

≤0.60mm

0.15mm/0.25mm

φ1.5

1.5mm

0.10mm/0.15mm

≤0.90mm

0.15mm/0.25mm

φ2.0

2.0mm

0.10mm/0.20mm

≤1.30mm

0.15mm/0.25mm

φ2.5

2.5mm

0.10mm/0.20mm

≤1.50mm

0.15mm/0.30mm

φ3.0

3.0mm

0.15mm/0.20mm

≤2.1mm

0.15mm/0.30mm

φ3.5

3.5mm

0.15mm/0.20mm

≤2.2mm

0.20mm/0.30mm

4:1 PTFE Heat Shrink Tubing

4 to 1 PTFE Shrink Tubing

4:1 Shrink Ratio

This tubing will shrink to 1/4 of its original diameter, providing more significant shrinkage. It is ideal for applications where you need to fit the tubing over a wide range of sizes or components with varying dimensions.

Applications

Used for more flexible applications where a wider range of sizes is involved, such as larger cables, irregularly shaped connectors, or when sealing and insulating are required over a broader spectrum of sizes.

Strength and Durability

4:1 tubing might offer a more secure fit for larger or irregularly shaped items.

Size

ID Before Shrinkage

Wall Thickness

ID After Shrinkage

φ1.5

1.8mm

0.07mm

0.4mm

φ2.0

2.2mm

0.07mm

0.5mm

φ3.0

3.2mm

0.07mm

0.7mm

φ4

4.3mm

0.07mm

1.2mm

φ5

5.5mm

0.07mm

1.4mm

φ6

6.3mm

0.10mm

1.7mm

φ8

8.3mm

0.10mm

2.0mm

φ9

9.0mm

0.10mm

2.3mm

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    FAQs

    We offer 1.7:1 and 4:1 shrink ratios.
    • 1.7:1 Shrink Ratio: 0.7mm - 3.5mm
    • 4:1 Shrink Ratio: 1.8mm - 9.0mm
    • 1.7:1: 0.10mm, 0.15mm, 0.20mm
    • 4:1: 0.07mm, 0.10mm

    Our PTFE tubing typically shrinks at approximately 330°C (626°F).

    Yes, we offer custom inner diameters, wall thicknesses, and lengths based on your requirements.

    Yes, we offer free sample pieces for testing before bulk orders.