Various Kinds of Coating and their Applications
September 14, 2023

We offer ECTFE, ETFE, FEP, PFA, and PVDF coating for centrifuges, valves, storage tanks, filters, dryers, reactors, mixers, columns, spares, and silicon carbide shell and tube heat exchangers, among other industrial equipment and parts depending on client requirements.

5 Different Types of Coatings and their Applications

ECTFE Coating

Ethylene chlorotrifluoroethylene, or ECTFE for short, is a fluoropolymer made from fluorocarbons. Over a broad temperature range (-76 to 150 degrees Celsius), it exhibits excellent impact strength, and chemical and corrosion resistance.

Equipment working at temperatures up to 300 degrees Fahrenheit can benefit greatly from the ECTFE coatings‘ superior chemical resistance and electrical qualities.

  • In high-frictional applications where dimension stability is essential, ECTFE coatings are used to reduce wear.
  • Bearings, cams, valve seals, semi-conductor tooling, and cables are all commonplace examples.
  • Machine Tools May Use This Coating as a Bearing Surface.
  • Since it has a high resistivity and a low dielectric constant, it can be used as an electrical insulator.
  • Compatible with ultrasonic welding and epoxy resin, two common methods for joining fluoropolymers.
  • ECTFE coating shares ETFE’s chemical properties but has lower melting points.
  • ECTFE coating is best for chemical use.

When it comes to chemical resistance, ECTFE is among the best polymers on the market. Some of ECTFE’s shining qualities that make it suitable for use in industry:

  • Superb Releasing Qualities
  • Low cold flow and dimensional stability allow for optimal performance in temperatures (up to 300°F).
  • Superior mechanical strength, including high resistance to abrasion and impact.

ETFE Coating

Another type of plastic made from fluorocarbons is ethylene tetrafluoroethylene (ETFE). Polymerized from ethylene and tetrafluoroethylene monomers, ETFE is a thermoplastic copolymer. This resin is impervious to abrasion and has a high degree of toughness. It was developed to be strong at a variety of temperatures, resist corrosion, and have a low coefficient of friction. Furthermore, it has a high melting point and produces no harmful byproducts when burned.

The chemical and petrochemical industries have long recognized ETFE coating as a reliable fluoropolymer. ETFE has been widely celebrated for its one-of-a-kind qualities and adaptability in design. Industrial equipment and components with the most demanding material challenges can be easily addressed.

When coated with ETFE, polymers are protected from the chemicals and solvents that normally hasten their degeneration. Mineral acids, inorganic bases, halogens, and metal salt solutions have no effect on ETFE.

Mechanical strength, stiffness, and abrasion resistance will also be much improved in ETFE coatings. It will be perfect for uses where abrasive slurries hasten the wear and breakdown of other materials.

FEP Coating

Hexafluoropropylene and tetrafluoroethylene copolymerize to form fluorinated ethylene propylene (FEP). The tensile strength, wear resistance, and creep resistance of this thermoplastic are all far lower than those of any comparable technical plastic. However, FEP coatings have a low dielectric constant and are chemically inert.

FEP Coating Characteristics:

  • Superior Resistance to Stress Cracking
  • Reduced Friction Coefficient
  • High Dielectric Strength
  • Capabilities to Withstand Heat
  • Excellent transmission of both UV and visible light; high degree of transparency.
  • Outstanding durability in the face of ozone, sunlight, and the elements
  • The thermoplastic with the lowest refractive index and the lowest light reflection.

Pipe linings, linings for chemical equipment like roll covers, cable applications including aircraft wire, plenum cable, fire alarm cable, and well logging cable are all significant uses for FEP coatings. Solar energy collectors’ windows can be made out of FEP film.

PFA Coating

Perfluoroalkoxy Polymer Resin, or PFA for short, is a form of fluoropolymer having qualities very close to those of Polytetrafluoroethylene (PTFE). It is melted, however, using standard injection moulding and screw extrusion processes. Similar to PTFE in terms of coefficient of friction and non-reactivity, PFA coatings are advantageous, but they can be shaped with relative ease.

The unique filler in Ruby Red PFA Coating makes it more chemically impermeable than standard PFA coating, extending the coating’s useful life.

PFA is a high-end resin that offers many of the same benefits as FEP. If you need a coating that can withstand chemical, thermal, and mechanical stress for long periods of time, PFA is your best bet.

PFA Coating Characteristics:

  • Superior Melting Point Stability Under Extensive Heat Treatment
  • Superior Resistance to Cracking
  • Superior Capacity to Withstand Stress
  • Reduced Friction Coefficient
  • Reduced Friction Coefficient

Common chemical processing technologies will not breakdown PFA coating. Some organic molecules, such as organic acids, anhydrides, aromatics, aliphatic hydrocarbons, alcohols, aldehydes, esters, ethers, chlorocarbons, fluorocarbons, and some mixtures thereof, have no effect on it.

The continuous service temperature for PFA coatings applied to carbon steel or stainless steel is between -60°F and 400°F. The PFA coating can’t go on without first being primed. PFA coatings have one major drawback in that they are irreparable if damaged. The coating must be heated in order to cure.

PVDF Coating

PVDF coating is defined as Polyvinylidene fluoride (PVDF) a pure thermoplastic fluoropolymer that exhibits very little chemical reactivity. It’s also known by the acronym HYLAR.

Plastic made from polyvinylidene fluoride (PVDF) is a unique type of fluoropolymer. When it comes to purity, strength, resistance to solvents, acids, and bases, and low smoke generation in the case of a fire, PVDF coating is second to none.

Due to its low melting point of roughly 177 C, PVDF coatings are simple to melt in comparison to other fluoropolymers. In comparison to other fluoropolymers, it has a low density and is inexpensive.

Polyvinylidene fluoride (PVDF) is a pure thermoplastic fluoropolymer that exhibits very little chemical reactivity. PVDF is widely used in the chemical, semiconductor, medical, and defence industries, as well as in lithium-ion batteries, and it can be injected, moulded, or welded.


Fluton valve provides services for all these kinds of coatings. If you are looking to provide a protective coating for your industrial equipment, feel free to contact us.

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