High-Performance PTFE Insulating Tubing | Industrial Grade Sleeving on Spools

Our PTFE Insulating Tubing (also known as PTFE Sleeving or “Spaghetti Tubing”) is engineered for environments where electrical insulation, extreme temperatures, and chemical resistance are non-negotiable.

Manufactured from high-purity Polytetrafluoroethylene, this tubing provides a low-friction, non-stick surface and remains stable under the most demanding conditions. Supplied on continuous spools, it is optimized for automated assembly lines, wire harness fabrication, and precision industrial applications.

CYLEX supports small-batch customization, offers volume purchasing discounts, ensures rapid delivery, and provides comprehensive after-sales service guarantees.

If you require a quotation or wish to inquire about further details regarding PFA product customization and processing, please feel free to contact us at any time.

Material:

PFA (Perfluoroalkoxy Alkanes)
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High technology, high standards

100% full inspection before shipment

Can be in bulk or in single piece

Key Performance Features

  • Superior Dielectric Strength: Provides reliable electrical insulation for high-voltage components and sensitive electronics.

  • Extreme Temperature Resistance: Operates continuously from -65°C to +260°C (-85°F to +500°F) without losing mechanical properties.

  • Universal Chemical Inertness: Resistant to virtually all industrial chemicals, solvents, and corrosive fluids.

  • Low Coefficient of Friction: Ensures smooth wire insertion and easy cleaning, making it ideal for fluid handling and mechanical protection.

  • UV & Weather Resistant: Will not degrade or become brittle when exposed to harsh outdoor environments or UV light.

 

Common Applications

  • Electrical & Electronics: Lead insulation, transformer sleeving, and wire harness protection in aerospace and automotive sectors.

  • Medical & Laboratory: High-purity fluid transfer and protective covers for surgical instruments.

  • Industrial Machinery: Fuel and oil line protection, 3D printer filament guides, and chemical dosing systems.

  • Semiconductor: Protecting critical components from corrosive gas and high-heat processing.

Technical Specifications

PropertyValue
Material100% Virgin PTFE
HardnessShore D 50-65
FlammabilityUL94 V-0 (Self-extinguishing)
Dielectric Strength≥10 kV/mm
Standards ComplianceRoHS, REACH, and FDA Compliant materials
Voltage Rating150V – 600V
Operating Temperature-65°C to +260°C (Rated 105°C)
Melting Point327°C
Flammability RatingVW-1
Dielectric Strength (Second)45 kV/mm
Available ColorsTransparent, Black, Blue, Red, Yellow, Green, Gray

Packaging & Availability

At Cylex Plastics, we understand the need for efficiency. Our PTFE tubing is:

  • Available in AWG sizes (0 through 30) and fractional inch diameters.

  • Supplied on sturdy, continuous spools to minimize waste and facilitate bulk handling.

  • Custom lengths, wall thicknesses, and colors are available upon request.

 

Frequently Asked Questions (FAQ)

  • Q: Can this PTFE tubing be used for food contact?

    • A: Yes, our PTFE insulating tubing is manufactured from FDA-compliant raw materials, making it safe for food and beverage applications.

  • Q: Is this tubing heat-shrinkable?

    • A: No, this is standard wall insulating tubing. If you require heat-shrink capabilities, please view our PTFE Heat Shrink category.

  • Q: How do I choose the right size for my wire?

    • A: We recommend selecting an Inside Diameter (ID) slightly larger than your wire’s outer diameter. We provide standard AWG sizing to match most electrical applications.

 

 PTFE Insulating Tubing Specifications

ModelInner Dia (mm)Inner Dia (inch)Outer Dia S (mm)Outer Dia S (inch)Outer Dia T (mm)Outer Dia T (inch)Outer Dia L (mm)Outer Dia L (inch)Packing (m)Packing (ft)
300.30±0.080.012±0.0030.80±0.080.031±0.0030.76±0.080.030±0.0030.60±0.100.024±0.0043051000.7
280.38±0.080.015±0.0030.88±0.080.035±0.0030.84±0.080.033±0.0030.68±0.100.027±0.0043051000.7
260.46±0.080.018±0.0030.96±0.080.038±0.0030.92±0.080.036±0.0030.76±0.100.030±0.0043051000.7
240.56±0.080.022±0.0031.16±0.080.046±0.0031.06±0.080.042±0.0030.86±0.100.034±0.0043051000.7
230.66±0.080.026±0.0031.26±0.080.050±0.0031.16±0.080.046±0.0030.96±0.100.038±0.0043051000.7
220.71±0.080.028±0.0031.31±0.080.052±0.0031.21±0.080.048±0.0031.01±0.100.040±0.0043051000.7
210.81±0.080.032±0.0031.41±0.080.056±0.0031.31±0.080.052±0.0031.11±0.100.044±0.0043051000.7
200.86±0.080.034±0.0031.66±0.080.065±0.0031.46±0.080.057±0.0031.16±0.100.046±0.0043051000.7
190.96±0.100.038±0.0041.76±0.100.069±0.0041.56±0.100.061±0.0041.26±0.120.050±0.0053051000.7
181.07±0.100.042±0.0041.87±0.100.074±0.0041.67±0.100.066±0.0041.37±0.120.054±0.0053051000.7
171.19±0.100.047±0.0041.99±0.100.078±0.0041.79±0.100.070±0.0041.49±0.120.059±0.0053051000.7
161.34±0.100.053±0.0042.14±0.100.084±0.0041.94±0.100.076±0.0041.64±0.140.065±0.0063051000.7
151.50±0.120.059±0.0052.30±0.120.091±0.0052.10±0.140.083±0.0061.80±0.140.071±0.006153502.0
141.68±0.120.066±0.0052.48±0.120.098±0.0052.28±0.140.090±0.0062.08±0.140.082±0.006153502.0
131.93±0.120.076±0.0052.73±0.120.107±0.0052.53±0.140.100±0.0062.33±0.160.092±0.006153502.0
122.16±0.140.085±0.0062.96±0.140.117±0.0062.77±0.160.109±0.0062.56±0.160.101±0.006153502.0
112.41±0.140.095±0.0063.21±0.140.126±0.0063.01±0.160.119±0.0062.81±0.160.111±0.006153502.0
102.69±0.140.106±0.0063.49±0.140.137±0.0063.29±0.160.130±0.0063.09±0.160.122±0.006153502.0
93.00±0.160.118±0.0064.00±0.160.157±0.0063.76±0.180.148±0.0073.40±0.180.134±0.007100328.1
83.38±0.160.133±0.0064.38±0.160.172±0.0064.14±0.180.163±0.0073.78±0.180.149±0.007100328.1
73.76±0.160.148±0.0064.76±0.160.187±0.0064.52±0.180.178±0.0074.16±0.180.164±0.007100328.1
64.22±0.180.166±0.0075.22±0.180.206±0.0074.98±0.200.196±0.0084.72±0.180.186±0.007100328.1
54.72±0.180.186±0.0075.72±0.180.225±0.0075.48±0.200.216±0.0085.22±0.200.206±0.008100328.1
45.28±0.200.208±0.0086.28±0.200.247±0.0086.04±0.200.238±0.0085.78±0.200.228±0.008100328.1
35.94±0.200.234±0.0086.94±0.200.273±0.0086.70±0.200.264±0.0086.44±0.200.254±0.008100328.1
26.68±0.200.263±0.0087.68±0.200.302±0.0087.44±0.200.293±0.0087.18±0.200.283±0.008100328.1
17.46±0.200.294±0.0088.46±0.200.333±0.0088.22±0.200.324±0.0087.96±0.200.313±0.008100328.1
08.38±0.200.330±0.0089.38±0.200.369±0.0089.14±0.200.360±0.0088.88±0.200.350±0.008100328.1

 

Technical Comparison

PropertyPTFE (This Product)FEPPFA
Max. Service Temp260°C (500°F)200°C (392°F)260°C (500°F)
TransparencyOpaque / Milky WhiteHigh TransparencyClear / Transparent
FlexibilityExcellentGoodExcellent
Chemical ResistanceOutstandingExcellentOutstanding
Dielectric StrengthHighestHighHigh
Key AdvantageBest for high-heat insulationBest for visual flow monitoringBest for high-purity / semiconductor

Comparison of Main Performance of Fluorocarbons

PropertiesASTM Method & ConditionsPOLYFLON PTFENEOFLON PFANEOFLON FEPNEOFLON ETFENEOFLON PCTFENEOFLON PVDF
Physical Properties
Specific GravityD7922.13-2.222.12-2.172.12-2.171.70-1.862.10-2.141.76-1.78
Water Absorption (%)D570/24h, 1/3"t< 0.00< 0.01< 0.00< 0.1< 0.000.04
Molding Shrinkage (cm/cm)-0.02-0.050.040.03-0.060.03-0.040.015-0.0200.014
Contact Angle (°)Angle with Horizontal110115114968482
Thermal Properties
Thermal Conductivity (W/cm·k)C1770.25-0.250.240.20-0.220.13
Linear Expansion Coeff. (1/°C)D696 / 23-60°C10 × 10⁻⁵12 × 10⁻⁵ (+20~+100°C)(+50~+100°C) 8.3-10.5 × 10⁻⁵5-9 × 10⁻⁵4.5-7.0 × 10⁻⁵4.2 × 10⁻³
Melting Point (°C)-327302-310270260210-212173-175
Melt Viscosity (P)-10¹¹-10¹³ (340-380°C)10⁴-10⁵ (380°C)4×10⁴-10⁵ (380°C)10⁴-10⁵ (300-330°C)10⁷ (230°C)2×10³-10⁵ (210-270°C)
Max Continuous Use Temp (°C)-260260200150120150
Mechanical Properties
Tensile Strength (Mpa)D638 / 23°C20-4527-3519-2240-5031-4139-59
Elongation (%)D638 / 23°C200-450280-400250-330420-46080-250300-450
Compressive Strength (Mpa)D695 / 1% def, 25°C5-65-65-6119-1113-14
Tensile Modulus (Mpa)D638 / 23°C392451343490-7841029-2058784-1960
Flexural Modulus (Mpa)D790 / 23°C490-588647-686539-637882-13721274-17641372-1764
Impact Strength (J/m)D256 / 23°C Cantilever160Non-breakNon-breakNon-break133-1441104
Hardness (Shore)DurometerD50-D65D60D55D75D80D75-D85
Deformation Under Load (%)D621 / 100°C, 6.8Mpa,24h5.02.45.05.42.62.4
Deformation Under Load (%)D621 / 25°C, 13.7Mpa,24h7.02.73.02.30.20.7
Static Friction Coeff.vs. Steel0.020.050.050.060.080.4
Electrical Properties
Dielectric ConstantD150 / 10³ Hz2.12.12.12.62.3-2.77.72
Dielectric ConstantD150 / 10⁶ Hz2.12.12.12.62.3-2.56.43
Dielectric Loss FactorD150 / 10³ Hz<1×10⁻⁵1×10⁻⁵6×10⁻⁵8×10⁻⁴2.3-2.7×10⁻²1.9×10⁻²
Dielectric Loss FactorD150 / 10⁶ Hz<2×10⁻⁵3×10⁻⁵5×10⁻⁵5×10⁻³1×10⁻²0.159
Dielectric Strength (MN/m)D149 / Short, 3.2mm192020-241620-2410
Volume Resistivity (Ω·cm)D257>10¹⁸>10¹⁸>10¹⁸>10¹⁸>10¹⁶2×10¹⁴
Other Properties
Chemical Resistance-ExcellentExcellentExcellentExcellentExcellentExcellent
Weather Resistance-ExcellentExcellentExcellentExcellentExcellentExcellent
Flame Retardancy (LOI %)D2863 / Oxygen Index>95>95>9531>9543

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Three spools of natural white PTFE insulating tubing for electrical wire protection.

High-Performance PTFE Insulating Tubing | Industrial Grade Sleeving on Spools