Teflon coating India

Make any surface non-stick with Teflon coating

Teflon™ is a registered trademark of Chemours (formerly DuPont) for a range of fluoropolymer coatings for consumers and industrial applications. In India the teflon coating products are mostly known for their low coefficient of friction which creates a non stick surface for example on cookware and vehicles. However, these coatings come with many more benefits allowing for a wider range of applications.

In this article we will answer questions like what is teflon coating and what are the uses of teflon coating by taking a closer look at the different types of Teflon coating products and their applications and uses as well as providing you with a brief overview of Teflon coating companies in India.

The essential Teflon coating information

A common misconception is that Teflon coating is one type of product; the truth is Teflon is a trademark that covers several fluoropolymer coatings. The trade name Teflon was used for the first time in 1938 when a material called polytetrafluoroethylene (PTFE) was discovered. Back then, Teflon coating was a synonyme to PTFE coating. However, nowadays, Teflon refers to a group of fluoropolymer coatings by Chemours which can be used to create a non stick surface for example on cookware. These coatings also have more beneficial properties; teflon coatings are:

• Non-wetting – Teflon coated surfaces repel water and oils, and cannot be wetted. This also makes them easy to clean.
• Chemical resistant – Teflon coating is highly resistant to solvents, acids, and bases.
• Anti galling and low friction – Due to the non-stick, low friction properties, a Teflon coating prevents galling (a form of wear caused by adhesion between sliding surfaces) and provides excellent bearing properties. It can achieve very low coefficients of friction, so is ideal for shafts, bearing surfaces, moving mechanisms, stud bolts and fasteners.
• Corrosion resistant – Because it is waterproof and chemical resistant, Teflon coating forms a barrier between a substrate and corrosive elements, protecting it from damage.
• Temperature resistant – Teflon coating is extremely resistant to high (and low) temperatures; it can function at temperatures of +260°C. Depending on the formulation it also has cryogenic stability and can maintain its physical properties down to -270°C.
• Electrical resistant -Teflon and other fluoropolymers work as insulators, and have a high dielectric strength and high surface resistivity. This makes them especially useful in electrical applications such as light fittings and connectors.

The six most common types of Teflon coating & their applications

Teflon coatings come in many types, the six most common ones are PTFE, FEP, PFA, ETFE, One Coat Teflon and Dry Lubricant. Below we will take a closer look at the six types and provide examples of their industrial uses and applications. When it comes to domestic applications of teflon coating, protecting cars and improving the looks of bikes are on top of the list.

1. Teflon PTFE coating – the original Teflon coating

Teflon coating on cookware has a beneficial anti stick function.

Applications: fuel filters, cookware, heat exchangers, carburetor shafts, ball valves, bearings, filters, cryogenic, aerospace

The Teflon PTFE coating was the first one to carry the trade name. These polytetrafluoroethylene coatings are non stick two coat (primer and topcoat) systems. They have the highest continuous operating temperature (up to 260°C) and extremely low coefficient of friction. They are also resistant to abrasion and a wide range of chemicals.

Available as: water based liquid coating

2. Teflon FEP coating – non-porous film

Applications: plastic moulds, food processing, rocket engines, textile dry cans, heat seal bars, chemical sector

The FEP (fluorinated ethylene propylene copolymer) coatings melt and flow during the curing process resulting in non proprus films. This type of Teflon coating is known for its resistance to an extensive range of chemicals. Additionally, the FEP coatings cure to an excellent non-stick surface with maximum operating temperature of 240°C.

Available as: water based liquid and powder coating

3. Teflon PFA coating – tough and temperature resistant

Applications: chemical impellers, mixing tanks, valves, pumps, laundry dryers, high temperature moulds

When the non-porous chemical resistant film of an FEP coating is required together with more resistance, a PFA (perfluoroalkoxy) coating is worth considering. These coatings have higher temperature resistance, (up to 260°C) and greater film thickness (up to 1,000 μm) as well as being tougher than FEP or PTFE.

Available as: water based liquid and powder coating

4. Teflon ETFE coating – Tefzel™ powder coating

Applications: tank linings, pumps, impellers, flanges, conveyor chutes, exhaust ducts, electrical insulators

ETFE (a copolymer of ethylene and tetrafluoroethylene) is the Teflon powder coating also sold under the trademark Tefzel. These coatings provide an extremely durable finish for they are the toughest of fluoroplastics and applicable at film thickness of up to 1,000 μm. Additionally, the ETFE coatings are chemical resistant and temperature resistant up to 149°C (operating temperature).

Available as: Teflon powder coating

5. Teflon One Coat – solvent based liquid coating in one just one coat

Applications: engineer parts, fan blades, garden tools, waffle irons, conveyors, automotive fasteners, fuel injectors, saw blades

These special blends of resins and fluoroplastics have been developed to increase abrasion resistance and general toughness. This type of Teflon coating has the traditional non-stick and low friction properties with an increased adhesion and abrasion resistance. They are often also easy to apply; suitable for smooth bare metal without thorough surface preparation like teflon processes usually have.

Available as: Solvent based liquid coating

6. Teflon Dry Lubricant – for high pressure and velocity conditions

Applications: copiers, printers, commercial food

Teflon Dry Lubricant coatings are designed for PV conditions (high pressure and velocity) to provide lubrication. These coatings are often one coat systems which cure between 260 and 370°C.

Available as: Solvent based liquid coating

Choosing the right type of non stick coating for your application

Even though you now know the basics of the six common types of Teflon coating, there is much more information about Teflon coating that benefits you when choosing a solution for your project. In case you are looking for a Teflon coating or wish to gain more information about fluoropolymer coatings, contact us! Our experts are here to help. Together with our specialised coating partners we will connect you with the coating system that best suits you needs. Get in touch by clicking the request-a-quote button on the bottom of this page or simply send us an email.

Teflon coating companies in India

Teflon coating is one of the most popular industrial solutions in India, as well as being well known among car and motorcycle enthusiasts (as Teflon coating hides more scratches which are a daily nuisance of car owners in India).

Thanks to the popularity of Teflon coatings, there are plenty of suppliers in India. India’s biggest Teflon coating companies include DuPont India in Mumbai, Haryana and Tamil Nadu, Poly Metal India in Pune, Maharashtra, and N Shashikant & Co in Mumbai.

Do not hesitate to contact us when in need of more information on Teflon coating products, applications or specialist companies. We, together with our partners provide you with necessary advisory and competitive quotes.