Fluoropolymers are temperature and chemical resistant plastics. The best known fluoropolymer is PTFE (Teflon®).
The main properties of all fluoropolymers are the low wettability of the surface, which facilitates the flow, slippage or separation of sticky or viscous substances from the coated surface.
To improve wear resistance, fluoropolymers can be reinforced with micro- or nano-ceramics.
Depending on the application, single-layer or multi-layer systems can be applied.
Coatable substrates
Metals (stainless steel, steel, aluminum, etc.).
Dimensions
We are specialized in the coating of smallest parts in the millimeter range. In principle, we can coat up to medium-sized objects of approx. 800 x 800 mm with our fluoropolymer coatings.
Properties of fluoropolymer coatings
- Adhesion repellent
- Slippery
- Abrasion-resistant (can also be reinforced with microceramics, for example)
- Approved for contact with food
- Sterilizable
- Electrically insulating, partly also conductive possible
- Temperature resistant up to 260 °C
- Chemical resistant pH 1 – 14
- Smooth or - if filling material of different grain size is added - rough surface
Application examples
- Devices and tools in industry and medical technology
- wear protection
- System construction for sliding parts with or without non-stick effect
- Filling equipment in the food industry
Cannulas coated with fluoropolymer
Other polymer coatings
We offer further polymer coatings, which are often used as protective coatings for differently pretreated components.
However, they are also used for decoration and to create soft-feel effects.
Acrylic resins and polyurethanes
Acrylic resins and polyurethanes (PUR) can be found as matrix for decorative colour effect layers and for coatings of gold, silver, chrome and titanium imitations on plastic, metal or glass. There are also special design coatings for soft-feel and reflective effects.
Halar (ECTFE)
Halar is a thermoplastic fluoropolymer. It is suitable for applications in which very high requirements are set on chemical resistance even at increased temperatures.
The temperature resistance of the layer in continuous use is approx. 150°C. Due to the relatively smooth surface, the coating has a good non-stick function.
Silicone polyester (PES)
In addition to PTFE coatings, PES (silicone polyester) is also used for sliding layers with low non-stick values, particularly in medicine. Due to the improved sliding behavior, needles with a PES layer hurt less when piercing.
PEEK
Polyetherketones, e.g. PEEK, are resistant to almost all organic and inorganic chemicals as well as scratch and wear resistant. They have an extraordinary thermal stability and are required especially for very high demands. Since PEEK coatings, in contrast to sol-gel nanocomposites, do not have chemical bonds to the substrates, but adhere purely physically, the surfaces to be coated must be roughened beforehand. PEEK is biocompatible and has food approval.