This guide is written for engineers, production managers, and procurement buyers specifying PTFE tape for industrial applications.
PTFE tape is most commonly associated with plumbing, where it is used to seal threaded pipe joints — but that represents a fraction of what this material actually does. In industrial manufacturing, PTFE tape (polytetrafluoroethylene tape, commonly called Teflon tape after DuPont’s registered brand name) is a high-performance engineering material used across food processing, industrial packaging, heat sealing, electrical insulation, release liner applications, aerospace, and automotive manufacturing.
This guide explains what PTFE tape is, the different types available, what it is used for across industrial sectors, and how to select the right grade for your application.
PTFE was discovered In 1938 when Dr. Roy Plunkett, a chemist working for DuPont, was experimenting with a new type of refrigerant gas. While conducting a routine experiment, he noticed something unusual. The gas had disappeared, and a white, waxy substance had formed in its place.
Intrigued by this unexpected discovery, Plunkett began to investigate the properties of the new material. He found that it was incredibly resistant to heat, chemicals, and stains. It was also remarkably non-stick, a property that would later prove invaluable in countless applications.
After years of research and development, DuPont introduced PTFE to the world under the brand name Teflon™ in 1946. The material quickly gained popularity due to its exceptional properties and versatility.
Polytetrafluoroethylene – A non-stick coating for pans, cookware, and even industrial food processing machinery. The pan must be made of aluminium or an aluminium alloy. The pan surface has to be specially prepared to receive the PTFE.
PTFE tape derives its industrial value from a combination of physical and chemical properties that most other materials cannot match simultaneously.
Temperature resistance spans from -73°C to +260°C for adhesive-backed PTFE tapes. Above 260°C the material begins to soften, and above 300°C fumes are produced which must not be inhaled. This range makes it suitable for continuous use in environments including industrial ovens, heat sealing equipment, and autoclave processes.
Chemical inertness is one of PTFE’s most defining characteristics. It is unaffected by virtually all known chemicals except alkali metals and fluorine under specific conditions. This makes it the material of choice for handling aggressive solvents, acids, and corrosive substances in chemical processing, pharmaceutical, and laboratory environments.
Non-stick surface. PTFE’s coefficient of friction is exceptionally low at 0.04–0.10 depending on load and surface speed. Nothing bonds permanently to it, making it the preferred choice wherever clean release, easy cleaning, or prevention of material build-up is required.
Electrical insulation. PTFE is one of the best solid dielectrics available, with surface resistance that is fully insulative. It also resists ultraviolet, infrared, microwave, and radio frequency energy.
Food safety. PTFE tape carries USFDA food approval, making it suitable for direct food contact applications in processing and packaging environments.
Corrosion protection. In industrial applications, PTFE tape applied to metal surfaces acts as a barrier against moisture and chemical attack, reducing corrosion risk on equipment, pipes, valves, and structural components operating in harsh environments.
Not all PTFE tapes are the same. The correct type depends on your application, the surface you are covering, the required thickness, and whether adhesive backing is needed.
PTFE Adhesive Tape (Glass Cloth Backed)
The most common industrial PTFE tape. A woven fiberglass substrate is coated with PTFE and backed with a silicone pressure-sensitive adhesive. Available in thicknesses from 0.08mm to 0.25mm and above. The fiberglass base provides tensile strength and dimensional stability, making it suitable for heat sealing bars, platens, and conveyor guide surfaces. Our PTFE Adhesive Tape TEFSIL® 6 uses a premium singles 2116 fiberglass base with a coated weight of 300g/m² — significantly above standard market offerings.
PTFE Zone Tape
A thinner adhesive PTFE tape designed for precise, targeted coverage of specific areas rather than full-surface application. Commonly used where only part of a sealing jaw or platen requires PTFE coverage, or where different zones of a surface need different materials. Our PTFE Zone Tape TEFSIL® 3 is available at 0.08mm thickness.
Skived PTFE Tape
Produced by shaving (skiving) solid PTFE billets into thin films rather than coating fiberglass. This produces a pure PTFE tape with no fiberglass substrate, giving it greater conformability and flexibility. Used in applications requiring a very thin, flexible PTFE layer, including thread sealing, wire wrapping, and electrical insulation.
Metal Detectable PTFE Tape
Standard PTFE adhesive tape with a detectable compound added to the substrate. If a piece of tape breaks away during production, it can be identified by inline metal detection systems. Essential in food manufacturing environments operating under HACCP or retailer food safety standards. Our Metal Detectable PTFE Tape is available in blue for visual identification as well as metal detection compatibility.
PTFE Film Tape
A thin PTFE film with adhesive backing, without a fiberglass reinforcement layer. Lower tensile strength than glass cloth tape but higher conformability. Used in electrical insulation, coil wrapping, and light-duty release applications.
| Grade | Thickness | Type | Max Temp | Width Range | Primary Use |
|---|---|---|---|---|---|
| Tefsil 3 | 0.08mm | Adhesive-backed | +260°C | 10mm–1,000mm | Light-duty heat sealing, release liner |
| Tefsil 5 | 0.11mm / 0.127mm | Adhesive-backed | +260°C | 10mm–1,000mm | Medium-duty packaging, food processing |
| Tefsil 6 | 0.15mm | Adhesive-backed | +260°C | 10mm–1,000mm | All-round heat sealing, packaging machinery |
| Tefsil 10 | 0.25mm | Adhesive-backed | +260°C | 10mm–1,000mm | Heavy-duty, high-cycle sealing |
| Tefsil 14 | 0.36mm | Adhesive-backed | +260°C | 10mm–1,000mm | Maximum durability, demanding applications |
| Non-adhesive | 0.08mm–0.36mm | Non-adhesive glass cloth | +260°C | 10mm-1,000mm | Release sheets, heat press, window welding |
All Tefsil adhesive grades are supplied on 30-metre rolls and can be slit to any width from 10mm to 1,000mm. Non-adhesive PTFE coated glass cloth is also available across the same thickness range — suitable for use as release sheets, window welding release media, and heat press applications where no adhesive is required. Both ranges comply with EU Regulation 10/2011 for food contact materials and US FDA 21 CFR 177.1550 for fluoropolymer resins, independently tested under high-temperature conditions including 2 hours at 175°C in sunflower oil simulant.
The right Tefsil grade depends on your application’s cycle frequency, temperature requirements, and whether adhesive backing is needed. The table below maps common industrial applications to the recommended starting grade — contact our technical team if your application sits between grades or has unusual substrate requirements.
| Application | Recommended Grade | Notes |
|---|---|---|
| Continuous heat sealing — food packaging | Tefsil 6 (0.15mm) | Most common grade for packaging machinery |
| High-speed bag sealing — heavy duty | Tefsil 10 (0.25mm) | Higher cycle count durability |
| Extreme-duty sealing — demanding cycle rates | Tefsil 14 (0.36mm) | Maximum thickness, longest service life |
| Release liner — industrial baking | Tefsil 6 (0.15mm) | Food contact compliant, EU and FDA approved |
| Roller covering — conveyor roller wrap | Tefsil 10 (0.25mm) | Durable non-stick surface for conveyor rollers |
| Anti-chafe tape — marine and rigging | Tefsil 6 (0.15mm) | Low friction, weather resistant surface protection |
| Photovoltaic vacuum laminating | Tefsil 10 (0.25mm) | Release surface for solar panel lamination process |
| Heat press — garment printing | Non-adhesive glass cloth | No adhesive required, reusable protective sheet |
| UPVC window welding release | Non-adhesive glass cloth | Release sheet for window frame welding platens |
Techbelt has manufactured and supplied PTFE tape from our Elland, West Yorkshire facility for over 20 years. We are a manufacturer, not a distributor — every roll of Tefsil tape is slit in-house to your required width from master rolls, which means we can fulfil non-standard widths from 10mm to 1,000mm on the same day for most orders.
Our PTFE coated fabrics and adhesive tapes are independently tested and comply with EU Regulation 10/2011 on plastic materials in contact with food, including testing in sunflower oil simulant at 175°C, and US FDA regulation 21 CFR 177.1550 for fluoropolymer resins. This means our tape is suitable for direct food contact applications — not just incidental contact — across all food types under any contact time up to 260°C.
We supply into food processing, packaging machinery, aerospace, pharmaceutical, and textile manufacturing — working directly with production engineers, procurement teams, and machine manufacturers across the UK and internationally. Samples are available for trialling before commitment to volume. Call our technical sales team on +44 (0) 1422 366386 or email sales@techbelt.com.
Each Tefsil grade has a dedicated product page with full specifications, pricing, and ordering options. Datasheets are available on each page or request from our technical team.
Heat Sealing and Industrial Packaging
Heat sealing is one of the most common industrial applications for PTFE adhesive tape. The tape is applied to the sealing bars, jaws, and platens of heat sealing machinery to prevent packaging films — polyethylene, polypropylene, laminates — from sticking to the hot metal surface during the sealing cycle. The PTFE surface releases the film cleanly after sealing, allowing high-speed continuous operation without contamination or film damage.
PTFE tape on sealing equipment wears gradually under repeated heat and pressure cycles. Thicker tapes with higher coated weights last longer in high-cycle applications. Our TEFSIL® 6 at 0.15mm with a 300g/m² coated weight is specifically suited to demanding packaging line applications.
Food Processing
PTFE tape’s combination of USFDA food approval, non-stick properties, chemical resistance, and easy-clean surface makes it a standard material across food processing. Applications include coating conveyor guide rails, sealing bar surfaces on food packaging machines, lining filling machinery components, and protecting surfaces in bakery, snack food, meat processing, and ready meal production environments.
For food environments where product contamination is a critical control point, our Metal Detectable PTFE Tape provides the same PTFE performance with the added assurance that any fragment lost from the tape during production can be identified by standard metal detection systems.
Electrical Insulation
PTFE tape is a premium electrical insulator. Its surface resistance is fully insulative, and it resists ultraviolet, infrared, microwave, and radio frequency energy. Industrial applications include wrapping wire splices and connections, insulating coil windings in transformers and motors, protecting cable bundles in high-temperature environments, and insulating components in electronic assemblies where thermal and chemical stability are required alongside electrical isolation.
PTFE film tape is particularly suited to fine wire wrapping due to its conformability. Glass cloth-backed PTFE adhesive tape is used where greater mechanical protection is also required.
Release Liners and Non-Stick Surface Protection
In press moulding, laminating, thermoforming, and composite manufacturing, PTFE tape is applied to platens, cauls, and tooling surfaces as a permanent or semi-permanent release liner. The low friction surface prevents moulded parts, laminates, and composites from bonding to the tooling, ensuring clean release without the need for spray release agents. Surfaces remain clean across extended production runs with minimal maintenance.
PTFE tape is also used as a release surface in UPVC window welding, where it protects weld platens from PVC contamination during the heat-welding process.
Zone Taping and Selective Surface Coverage
Where only specific areas of a surface require PTFE coverage — such as protecting defined zones of a heat sealer jaw, a platen press surface, or a guide rail — PTFE Zone Tape allows precise application without covering the full surface. This is particularly useful in complex sealing configurations where multiple materials or surface treatments are required on the same component.
Corrosion Protection
PTFE tape applied to metal surfaces in aggressive environments provides a protective barrier against moisture, chemical attack, and galvanic corrosion. Pipes, valves, flanges, and structural steel in chemical processing plants, offshore installations, and wet industrial environments are protected using PTFE wrapping tape applied over the metal surface. The chemical inertness of PTFE means it resists the same aggressive substances that attack the metal it is protecting.
Aerospace and Automotive
In aerospace and automotive manufacturing, PTFE tape is used in wiring harness insulation, fluid system line protection, and surface treatments on components operating under sustained thermal and mechanical stress. Its combination of lightweight construction, resistance to aviation fuels, hydraulic fluids, and lubricants, and stable performance across a wide temperature range makes it suitable for applications where long-term reliability under harsh conditions is non-negotiable.
Correct application ensures maximum adhesion, longevity, and performance. The following applies to adhesive-backed PTFE glass cloth tape used on industrial surfaces such as heat sealing bars and platens.
Surface preparation. The surface must be clean, dry, and free from dust, grease, oil, and residue from previous tape. Use a clean cloth with a compatible solvent such as isopropyl alcohol to degrease the surface. Allow to dry fully before applying tape. Avoid condensation — do not apply tape to cold surfaces brought into a warmer environment until surface temperature has equalised.
Application. Peel back the release liner and apply the tape firmly from one end, pressing down progressively to avoid air bubbles. Do not stretch the tape during application as this can cause lifting at edges. For sealing bar applications, ensure the tape extends slightly beyond the active sealing area at each end to prevent edge lifting under repeated pressure.
Burnishing. After application, press down firmly across the full surface using a roller or firm cloth. This ensures full contact between the adhesive and the substrate and removes any air pockets.
Initial cure. For silicone PSA adhesive tapes, full adhesive bond develops over 24–72 hours at room temperature. Avoid high-temperature use immediately after application if possible — allow the adhesive to seat before exposing to full operational temperatures.
Storage. Store unused tape rolls at 21°C and 50% relative humidity, protected from direct sunlight and moisture. Shelf life is 6 months from manufacture when stored correctly.
For specific application guidance on your equipment, contact our technical sales team on +44 (0)1422 366386.
Yes. There is no difference between PTFE tape and Teflon tape — they are the same material. Teflon® is a registered trademark owned by Chemours (formerly DuPont) for polytetrafluoroethylene. The correct technical name is PTFE. When industrial buyers, engineers, and procurement teams search for “Teflon tape” they are looking for the same product sold under its generic name, PTFE tape.
Techbelt manufactures and supplies PTFE tape under the TEFSIL® brand. Our products are manufactured to industrial grade specifications, not to plumbing grade, and are supplied slit to customer-specified widths from 3mm up to 1,000mm.
PTFE Tape Specifications — Key Data
When specifying PTFE adhesive tape for an industrial application, the following parameters are the most relevant to assess and compare between products.
| Property | Typical Value (TEFSIL® 6) |
| Operating temperature range | -73°C to +260°C |
| Coated fabric thickness | 0.142mm |
| Coated fabric weight | 290 g/m² |
| PTFE coating percentage | 64% |
| Warp tensile strength | 1,600 N/5cm |
| Peel adhesion | 12 N/2.5cm |
| Low friction coefficient | 0.04–0.10 |
| Surface resistance | Insulative |
| Food approval | USFDA |
| Available widths | 3mm–1,000mm (custom slit) |
| Roll length | 30 metres standard |
Note: specifications vary by product grade. Contact our technical sales team for data sheets on specific products.
Looking for a low-friction tape for mechanical applications?
For applications requiring ultra-low friction on moving surfaces — drawer slides, chute liners, conveyor guides, treadmill belts — UHMW tape (Ultra High Molecular Weight polyethylene tape) is the more appropriate choice over PTFE. UHMW PE tape offers excellent abrasion resistance and a smooth, self-lubricating surface, with high bond adhesive backing for permanent fixing. Techbelt supplies UHMW tape in multiple widths for industrial and commercial use.
The Tefsil grades differ primarily in thickness — Tefsil 3 is 0.08mm, Tefsil 6 is 0.15mm, and Tefsil 10 is 0.25mm. Thicker grades last longer under repeated heat and pressure cycles but are less conformable to uneven sealer bar surfaces. Tefsil 3 is suited to light-duty applications and sealer bars with fine or complex profiles where a thin tape is needed to conform accurately. Tefsil 6 is the standard choice for most continuous heat sealing on packaging machinery — it provides a good service life at moderate cycle rates. Tefsil 10 is specified for high-speed, high-cycle operations where replacement frequency is a cost concern. If in doubt, Tefsil 6 is the safest starting point for most industrial heat sealing applications. Contact our technical team for guidance on specific machines.
Service life varies significantly depending on working conditions — sealer bar temperature, cycle rate, sealing pressure, the material being sealed, and how the machine is operated and maintained all affect how long PTFE tape lasts. Because of this, Techbelt does not quote a single figure. What is consistent is that higher Tefsil grades (Tefsil 10 and Tefsil 14) outlast thinner grades under identical conditions. Proper installation on a clean, smooth sealer bar and avoiding contact with sharp edges or contamination are the most important factors in maximising service life. Our technical team can advise on grade selection based on your specific machine and cycle rate.
Yes. Techbelt’s PTFE coated fabrics and adhesive tapes comply with EU Regulation 10/2011 on plastic materials intended to come into contact with food, including testing in sunflower oil simulant at 175°C for 2 hours. They also comply with US FDA regulation 21 CFR 177.1550 for fluoropolymer resins. These approvals cover use with all food types under any contact time and temperature up to 260°C, including baking and frying applications. Full regulatory statements are available on request from our technical sales team.
Adhesive-backed PTFE tape degrades gradually over the operating range rather than failing suddenly. Performance is stable from -73°C to +260°C. Above 260°C the PTFE coating begins to soften and the adhesive bond can weaken. Above approximately 300°C, PTFE begins to decompose and can produce fumes — this must be avoided. In practice, most service failures on heat sealing equipment are mechanical rather than thermal: the tape wears through under repeated pressure cycles or lifts at the edges due to adhesive failure, rather than failing due to thermal overload. Operating within the rated temperature range, correct tape grade selection for the cycle rate, and proper application technique are the main factors governing service life.
Techbelt’s Tefsil adhesive tape range uses a PTFE-coated fiberglass glass cloth as the substrate — the glass cloth provides tensile strength, dimensional stability, and resistance to tearing under mechanical stress. This makes it the correct choice for heat sealing bars, packaging machinery platens, and applications where the tape is fixed in place and subject to repeated compression. PTFE film tape has no glass cloth reinforcement — it is made from pure PTFE film with adhesive backing. Film tape is thinner, more conformable, and suited to wrapping applications, cable insulation, and surfaces with complex profiles where the tape needs to follow a curve or contour. For fixed flat surface applications such as heat sealing, glass cloth-backed Tefsil tape is the correct choice.
Shop Industrial PTFE Tape from Techbelt
Techbelt have supplied PTFE tape and industrial belting to manufacturers in over 50 countries for more than 20 years. All tapes are available ex-stock, slit to your specified width. Worldwide shipping is available on all orders.
Then three product callout blocks:
PTFE Adhesive Tape TEFSIL® 6 — 0.15mm Premium fiberglass-backed PTFE adhesive tape. 300g/m² coated weight. Supplied in 30m rolls, slit to any width from 3mm–1,000mm. → View product
PTFE Zone Tape TEFSIL® 3 — 0.08mm Thin PTFE adhesive tape for targeted zone coverage. Ideal for partial sealing bar applications and precision surface protection. → View product
Metal Detectable PTFE Tape — Blue PTFE adhesive tape with metal detection compatibility. Blue for visual identification. Designed for food manufacturing environments operating under HACCP and retailer food safety standards. → View product
