Clear PTFE Heat Shrink Tubing 1.7:1 | 260°C High-Temp Sleeving — φ0.5mm to φ20mm

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Clear PTFE Heat Shrink Tubing 1.7:1 | 260°C High-Temp Sleeving — φ0.5mm to φ20mm

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Diameter: φ0.5mm

Length: 1 M

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$2.16 USD

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Clear PTFE Heat Shrink Tubing 1.7:1 — Reliable High-Temp Wire Insulation from φ0.5mm to φ20mm

When standard PVC or polyolefin sleeving fails under heat, chemical exposure, or tight installation tolerances, engineers, lab technicians, and serious DIYers turn to PTFE heat shrink tubing. Whether you're insulating thermocouple leads inside an oven, protecting sensor wiring on an engine, or routing delicate conductors through a corrosive environment, ordinary sleeving simply isn't rated for the job.

This clear PTFE heat shrink tubing features a 1.7:1 shrink ratio and a continuous service rating of 260°C (500°F). Each piece is sold by the meter in diameters ranging from φ0.5mm (≈0.020") to φ20mm (≈0.787"), giving you the flexibility to order exactly what your project requires — no minimum coil lengths, no waste. The transparent wall lets you visually confirm wire position and color coding after installation.

Typical applications include thermocouple and RTD sensor lead insulation, high-temperature wiring harness protection in automotive and aerospace assemblies, laboratory instrument cabling, and chemical plant electrical conduit sleeving where PTFE heat shrink tubing for wire protection is the specified material.

ℹ️ Compatibility Note: This tubing is compatible with standard round wire, cable bundles, and cylindrical components. Verify the recovered inner diameter (supply diameter ÷ 1.7) fits snugly over your component before ordering. Shrinking requires a heat gun capable of reaching approximately 327°C (620°F) or higher.

✅ Key Features of These PTFE Heat Shrink Tubes

🌡️260°C Continuous Rating — Withstands sustained high-temperature environments where polyolefin or PVC sleeving would melt or deform, making it suitable for oven wiring, engine bays, and industrial heating equipment.
🔬Broad Chemical Resistance — PTFE is inert to most acids, bases, fuels, and solvents, making this clear PTFE heat shrink sleeving the go-to choice for laboratory and chemical processing applications.
🔍Transparent Wall — The clear finish allows visual inspection of wire color coding and splice integrity after shrinking, eliminating guesswork during troubleshooting or quality inspection.
📏Wide Diameter Range — Available from φ0.5mm (≈0.020") to φ20mm (≈0.787") to cover fine thermocouple wire, multi-conductor cables, and larger conduit runs from a single product listing.
⚡Excellent Electrical Insulation — PTFE offers high dielectric strength, making this tubing reliable for insulating wire splices, sensor leads, and high-voltage connections in demanding environments.
✂️Cut-to-Length Flexibility — Sold by the meter (1M, 2M, 3M, 5M, 10M, and 20M options), so you order only what you need for prototyping, repair, or production runs without paying for excess coil stock.

📐 Technical Specifications — PTFE Heat Shrink Tubing

Material	PTFE (Polytetrafluoroethylene)
Color / Finish	Clear (transparent)
Shrink Ratio	1.7:1
Continuous Service Temperature	260°C (500°F)
Shrink Temperature	Typically ≥327°C (≥620°F) — use a heat gun
Available Diameters (Supply / Pre-shrink)	φ0.5mm, φ0.8mm, φ1mm, φ1.5mm, φ2mm, φ2.5mm, φ3mm, φ3.5mm, φ4mm, φ4.5mm, φ5mm, φ5.5mm, φ6mm, φ7mm, φ8mm, φ9mm, φ10mm, φ11mm, φ12mm, φ15mm, φ16mm, φ18mm, φ20mm
Available Lengths	1M (≈3.3 ft), 2M (≈6.6 ft), 3M (≈9.8 ft), 4M (≈13.1 ft), 5M (≈16.4 ft), 10M (≈32.8 ft), 20M (≈65.6 ft)
Wall Thickness	See variant options
Electrical Insulation	Yes — high dielectric strength (contact us to confirm kV rating for your application)
Chemical Resistance	Resistant to most acids, bases, fuels, and solvents
UV Resistance	Generally suitable for outdoor use
Flammability	Contact us to confirm
Application Method	Heat gun (open flame not recommended)

⚠️ Sizing Tip: To find the recovered (post-shrink) inner diameter, divide the supply diameter by 1.7. Example: φ10mm ÷ 1.7 ≈ φ5.9mm recovered. Always confirm your component's outer diameter before ordering.

❓ Frequently Asked Questions

How do I choose the right diameter for my application?

Measure the outer diameter of the wire, bundle, or component you need to cover. Choose a recovered (post-shrink) diameter that is slightly smaller than your component for a snug fit. With a 1.7:1 shrink ratio, a φ10mm tube will recover to approximately φ5.9mm. When in doubt, size up — you can always trim excess length. For inch-based measurements: φ6mm ≈ 0.236", φ12mm ≈ 0.472", φ20mm ≈ 0.787".

What does the 1.7:1 shrink ratio mean?

A 1.7:1 ratio means the tubing shrinks to roughly 59% of its original inner diameter when heat is applied. For example, a φ6mm tube will recover to approximately φ3.5mm. This ratio is typical for PTFE heat shrink and provides a firm, conforming fit over most round profiles.

Can this tubing handle outdoor or chemically harsh environments?

Yes. PTFE is generally resistant to UV exposure, moisture, and a broad range of chemicals including acids, bases, and solvents. It is commonly used in laboratory, industrial, and outdoor electrical applications where long-term chemical resistance is required.

What temperature is needed to shrink PTFE tubing?

PTFE heat shrink typically requires a heat source of around 327°C (620°F) or higher to initiate shrinking. A heat gun set to high is the most common tool. Do not use an open flame, as uneven heat can damage the tubing or the component underneath. Keep the heat gun moving to avoid scorching.

Is this tubing electrically insulating?

Yes. PTFE is an excellent electrical insulator with a dielectric strength generally in the range of 60–173 kV/mm depending on wall thickness. It is widely used for insulating wire splices, sensor leads, and thermocouple wiring in high-temperature environments. Contact us to confirm the specific kV rating for your voltage requirements.

How do I cut PTFE heat shrink tubing cleanly?

Use sharp scissors or a razor blade for clean, straight cuts. PTFE is a soft material and cuts easily without fraying. For very small diameters (φ0.5mm–φ2mm), a sharp hobby knife or scalpel gives the most precise results. Cut before shrinking for easiest handling.

Can I use this tubing on thermocouple or sensor wires?

Yes. PTFE heat shrink is one of the most common choices for thermocouple and RTD sensor lead insulation because it withstands the continuous high temperatures those sensors operate in. The clear finish also allows visual inspection of the wire underneath, which is useful during calibration and maintenance.

🛒 Select your diameter and length above, then add to cart — ships from our US warehouse.

Clear PTFE Heat Shrink Tubing 1.7:1 | 260°C High-Temp Sleeving — φ0.5mm to φ20mm

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Beschreibung

Clear PTFE Heat Shrink Tubing 1.7:1 — Reliable High-Temp Wire Insulation from φ0.5mm to φ20mm

✅ Key Features of These PTFE Heat Shrink Tubes

📐 Technical Specifications — PTFE Heat Shrink Tubing

❓ Frequently Asked Questions

Clear PTFE Heat Shrink Tubing 1.7:1 | 260°C High-Temp Sleeving — φ0.5mm to φ20mm

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