Commonly known as Teflon® (Chemours) , or Xylan® (PPG) are used for surface treatment of various materials, particularly metals and alloys.
PTFE coating, also known as polytetrafluoroethylene, is a type of fluoropolymer coating renowned for its exceptional non-stick properties. Here are some key features:
- Non-stick Surface: Prevents materials from adhering to the coated surface.
- Chemical Resistance: Resistant to a wide range of chemicals.
- Temperature Stability: Can withstand extreme temperatures, from very low to high.
- Low Friction: Provides a smooth, low-friction surface.
- Water Repellency: Highly resistant to water and moisture
Polytetrafluoroethylene (PTFE) has dry lubrication properties with a defined coefficient of friction excellent corrosion-resistant properties, is non-stick and is chemical and heat resistant, electrically non-conductive and waterproof.
PTFE coatings are often used as bonded coatings for permanent, dry (solid) lubrication, reducing friction. Another positive effect can be the avoidance of a stick-slip effect, if the static friction of a sliding mating is significantly higher than the sliding friction. This often leads to a sliding back.
Coated surfaces are virtually maintenance-free. In addition, leakage of grease or oil is excluded by as what the name suggests dry lubricant.
Teflon™ is not a product or brand name, but stands for an umbrella brand / product family of the company Chemours™. Various fluoropolymers are concealed under the name. PTFE PFA and FEP are particularly worth mentioning here. These are used as Teflon™ coating for non-stick coating, dry lubricant coating, chemical protection coating, corrosion protection coating and as electrically insulating coating.
Xylan® coatings, produced by PPG are analogous to the Teflon™, also offers a broad portfolio of coating solutions under the name Xylan®. This ranges from non-stick coatings and bonded coatings to chemical protection coatings and corrosion protection coatings. PPG Whitford's Xylan® is used to coat a range of components across the industry, from bolts, fasteners, valves and connectors. Xylan®-treated bolts will turn, even with external corrosion.
