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PTFE / Teflon Insulation Sleeves

PTFE / Teflon Insulation Sleeves | High-Temperature & High-Frequency Electrical Sleeving

PTFE / Teflon Insulation Sleeves are premium electrical insulation sleeving solutions designed for high-temperature, high-frequency, and chemically aggressive environments. PTFE sleeving offers outstanding electrical properties that remain practically constant across a wide range of frequencies, temperatures, and humidity conditions, along with an extremely low dielectric loss factor.

Teflon Insulation Sleeves | PTFE Insulated Sleeving – Manufacturer in India

Harnawa Insulations is one of the prominent manufacturers of Teflon insulation sleeves in India that offer highly advanced PTFE insulated sleeving which are designed for use in very severe environments regarding temperature, chemicals, and high frequency electricity. Highly acclaimed because of its dielectric strength, chemical inertness, and heat stability, Teflon Insulation Sleeves by Harnawa are used where other insulating materials such as PVC, PU, or silicone cannot work. If your application needs high-performance sleeving against heat and chemicals then try our Teflon Insulation Sleeves.

What is Teflon Insulation Sleeve?

Teflon Insulation Sleeve, also referred to as PTFE Insulated Sleeve, is a high-quality insulating tube fabricated using Polytetrafluoroethylene (PTFE), which is famous for its superior chemical resistance among plastics, great aging resistance, and low coefficient of friction compared to other solids. The PTFE sleeves are characterized by their superior electrical characteristics, which are fairly consistent at any frequency and humidity. The loss factor of PTFE is quite low, and this makes them very useful in applications involving high frequencies and precise electrical components. It does not dissociate when subjected to pressure. Key Features & Advantages
  • High Thermal Resistance – It is suitable for continuous use at an extremely high temperature range, even below zero temperature and up to +260°C
  • High Electrical Insulation Properties – High stability in electric performance even at different frequency levels and humidity without any loss factor
  • High Chemical Resistance – Highly resistant to acid, alkali, oil and solvent because it is chemically inert material
  • Non-flammable / Self-extinguishing – Gives high fire resistance in electrical uses
  • Non-sticking / Low Friction – Lowest coefficient of friction of any solid materials that makes it easy to install on wires and components
  • Mechanical Stability – This material doesn’t dissociate with pressure because it gives good mechanical strength
  • Available in Different Colors – Is available in different colors like black, brown, red, orange, yellow, green, blue, grey and white as required
  • Customization – Available in different sizes and according to customers requirements it can also be customized

Applications of Teflon Insulation Sleeves

Teflon Insulation Sleeves are used across a wide range of high-temperature, high-frequency, and chemically demanding applications, including:

Wiring & Cable Insulation – high temperature resistant insulation for wires and cables under severe environmental conditions

High Frequency Electrical Systems – applications that need consistent dielectric properties irrespective of changes in frequency and humidity

Chemical Process Plants – wire insulation in an environment where acids, bases, oils, and other solvents are present

Aerospace and Defense Sector – reliable insulation for challenging environmental conditions

Electrical & Instrumentation – insulation for delicate wire insulation in electronics and instrumentation

Industrial Machines & Furnaces – wire insulation in continuous high heat environments

Why Choose Harnawa as Your Teflon Insulation Sleeve Manufacturer in India

It is essential to obtain your Teflon insulation sleeves from a reliable supplier because these insulation sleeves have been specially designed for situations that require failure-proof standard insulation. The following factors contribute to the reputation of Harnawa Insulations as a reliable supplier of Teflon insulation sleeves in India:
  • Manufacturing with Quality Assurance – All the batches are manufactured and tested for dielectric strength, chemical resistance, and heat resistance.
  • Standards Certification – The company holds ISO 9001:2015 certification along with RoHS, REACH, UL, and CE certifications for all products.
  • Manufacturing Capabilities – Sleeves can be manufactured in different sizes and colours as per application needs.
  • PAN India Distribution Network – Electronics manufacturers, industrial OEMs, and precision machinery companies in India from our Mumbai headquarters and Bhiwandi manufacturing unit.
  • Technical Assistance & Bulk Orders – Our company provides technical assistance and bulk orders for competitive prices to procurement teams in India.
If you’re looking for a reliable Teflon insulation sleeve manufacturer and supplier in India, Harnawa provides high-performance PTFE sleeving engineered for your most demanding electrical and industrial applications.

Frequently Asked Questions

Q1: What is the difference between Teflon Insulation Sleeve and PTFE Insulated Sleeve?

There is no difference – “Teflon” is just a popular trade name for PTFE (Polytetrafluoroethylene) material.

Q2: What temperature range is Teflon Insulation Sleeve capable of operating at?

PTFE insulated sleeves are good for continuous use over a wide range of temperatures – from below zero to +260°С, depending on the particular grade of material.

Q3: Is Teflon Insulation Sleeve resistant to chemicals?

Yes, PTFE has excellent chemical resistance and stays inert to acids, alkalis, oils, and solvents.

Q4: What colors is it available in?

Sleeves can be produced in black, brown, red, orange, yellow, green, blue, gray, and white colors.

Q5: Is it supplied by Harnawa across India?

Yes, being one of the largest Teflon insulation sleeves manufacturers and suppliers in India, Harnawa Insulations delivers to all electronics manufacturers, industrial OEMs and equipment makers in India from our Mumbai and Bhiwandi locations.

Products image

Product Name

 PTFE / Teflon Insulation Sleeves

Material

Polytetrafluoroethylene (PTFE / Teflon)

Insulation Type

High-temperature electrical insulation

Electrical Properties

Excellent dielectric strength, very low loss factor

Standard Specification

JSS-54802

Compliance Authority

Department of Defence Production, Ministry of Defence (India)

Typical Applications

Wire & cable insulation, defence, aerospace, electronics

End Use Industries 

Electrical, automotive, industrial, heavy machinery

Color Options

Black, Brown, Red, Orange, Yellow, Green, Blue, Grey, White

PTFE Insulated Sleeving – Size Reference Table (As per JSS-54802)

S. No. Nominal Bore
(mm)
Bore Tolerance
(mm)
Wall Thickness
(mm)
Wall Tolerance
(mm)
Standard Colour
10.50±0.100.25±0.05White
21.00±0.100.25±0.05White
31.50±0.150.25±0.08Black
42.00±0.150.30±0.08Orange
52.50±0.150.30±0.08Red
63.00±0.150.35±0.08Grey
74.00±0.200.40±0.08Yellow
85.00±0.200.50±0.10Black
96.00±0.300.50±0.10Orange
107.00±0.300.50±0.10Red
118.00±0.300.50±0.10Grey
129.00±0.300.50±0.10Yellow
Note: The above table is for reference only and not a binding specification.

Applications

Electrical Insulation materials

Key Features

Excellent Electrical Insulation

Superior Thermal Resistance

High-performance Protection

Industries We Serve

Explore the Wide Range of Industries We Proudly Serve

Providing reliable and high-performance insulation solutions across various sectors.
Certification

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Certifications

ISO 9001:2015
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REACH Compliant
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Electrical Research
and Development
Association
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Inquiries and Custom Solutions

Find your right electrical insulation materials with us!

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