Fluoropolymers / Alfa Chemistry

Fluoropolymer Coating


Fluoropolymer coatings

PTFE coating has excellent chemical stability and corrosion resistance, can withstand most chemicals, and is widely used in various scenarios that require acid, alkali and organic solvent resistance.


  • High cleanliness
  • Traditional lubricants have problems of diffusion and pollution. The PTFE coating can form a uniform lubricating film on the surface of the workpiece, which has the characteristics of high cleanliness, low torque lubrication, noise reduction, and anti-static.

  • Non-stick
  • Even very thin film coatings show good non-stick properties.

  • Low friction and wear resistance
  • The surface treated by PTFE coating can produce dry lubrication, and its friction coefficient can be as low as 0.05. When processing mechanical parts, PTFE coating can produce self-lubricating effect while reducing friction coefficient and increasing wear resistance.

  • Unique electrical characteristics
  • In a wide frequency range, PTFE coating has high dielectric strength, low dissipation factor and very high surface resistivity.

  • Excellent adhesion
  • PTFE coating shows excellent adhesion to various metal substrates, thereby protecting the coating from falling off under the action of the external environment, such as seawater immersion and atmospheric erosion.

  • Electrochemical corrosion resistance
  • The insulation strength of the PTFE coating can reach 500-1200 volts per microinch (MIL), so as to achieve the effect of inhibiting electrochemical corrosion.

  • Color recognition
  • For specific purposes, the PTFE coating can be prepared into different colors to facilitate the management of safety levels and future maintenance.


  • The workpiece coated with PTFE has excellent characteristics in terms of wear resistance, self-lubrication, anti-sticking, anti-corrosion, high and low temperature resistance, and insulation resistance. It can prevent the workpiece from rusting and delay the aging of the workpiece. Therefore, it has a wide range of applications in the chemical, petroleum, textile, food, paper, medicine, electronics and machinery industries and marine operations.
  • The aqueous PTFE dispersion is applied to metal substrates by spraying, dipping, flow coating, electrodeposition or coagulation to provide chemical resistance, non-stick and low friction surfaces.
  • In clinical applications, PTFE coatings are more suitable for implants, stents and biomedical instruments due to their inert properties.
  • In the aerospace industry, PTFE coating can reduce friction and keep parts in vacuum for long-term use.
  • In the field of food processing, PTFE coating is an indispensable material, such as non-stick cookware and bakeware. The inertness and low surface energy of PTFE limit the adhesion of other molecules on its surface. The application of PTFE coatings in food processing helps reduce fouling, food contamination and biofilm formation.
  • Schematic diagram of anti-fouling modification of PTFE coatingFigure 1. Schematic diagram of anti-fouling modification of PTFE coating [1]

  • The PTFE coating has good anti-icing surface properties, and the superhydrophobic PTFE shows very low ice adhesion and can be used in extreme outdoor seasonal conditions.
  • Ice adhesion test results of PTFE coating (ARF, adhesion reduction factors) Figure 2. Ice adhesion test results of PTFE coating (ARF, adhesion reduction factors) [2]


  1. Jeffrey A. Barish, Julie M. Goddard, Food and Bioproducts Processing 91 (2013) 352-361.
  2. R. Jafari, G. Momen, M. Farzaneh, Journal of Coatings Technology and Research 13 (2016) 405-412.
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