What is a PTFE coating?
The PTFE coating is a synthetic fluoropolymer with a mer – [- CF2 – CF2−] n− structure. As a result, it offers resistance to harsh chemicals and extreme temperatures. It also offers low relative dielectric permittivity, low dissipation factor and extremely high resistance. PTFE coatings have been used successfully in many industries for over 80 years. Read on to find out how PTFE is made, its stories, and uses.
How was PTFE discovered?
As always, it happens by chance. Roy Plunkett worked at Kinetic Chemicals in the 1940s. Plunkett tried to develop a new refrigerant, but when working with gases he developed a waxy white coating that was surprisingly slippery. Subsequent tests showed several uses for the new fabric. It was patented in 1941 and registered under the Teflon® brand in 1945.
The new substance quickly found a wide variety of uses, and by 1948 DuPont, the parent company of Kinetic Chemicals, was producing over 900,000 kg of PTFE annually. As a curiosity, we can add that the tanks in which uranium hexafluoride was stored in the Manhattan project were covered with a PTFE coating. PTFE gained its real popularity in the 1960s. American housewives valued him back then. It was used as a non-stick coating in cookware. The non-stick surface makes the Teflon-coated cookware convenient to use and easy to clean. It also requires a small amount of oil, which makes it a healthy way to cook and fry food.
Are PTFE coatings harmless to health?
All PTFE products are currently PFOA-free. However, PFOA was used to make PTFE coatings until 2013. While most of the PFOA metal applied to the surface was burned at high temperatures during the curing process, a small amount was left in the final product. However, studies have shown that nonstick cookware is not a significant source of PFOA exposure. PFOA is linked to many conditions including thyroid disease, chronic kidney disease, liver disease, and testicular cancer. Fortunately, PFOA has been banned from being used as an additive to fluoropolymer coatings since 2013. Most of our coatings are approved for contact with food. This means that they can be applied to machine elements that are used in the food industry. Every day we cover machine elements that are used in baking and confectionery. PTFE coatings applied by a team of specialists from NonStick.pl to rollers, molds and molds for baking bread, cookie cutters or kneaders are a guarantee of working without gluing or gluing.
PTFE or polytetrafluoroethylene coatings are excellent non-stick fluoropolymer coatings with a very durable thin coating. These products have the highest operating temperature of up to + 260 ° C of all fluoropolymers and an extremely low coefficient of friction, good abrasion resistance and chemical resistance. We use PTFE coatings that require a smooth, corrosion-resistant coating with a low coefficient of friction. One of the most popular uses of PTFE coatings is to prevent sticking.
But why does nothing stay with PTFE?
PTFE is a polymer compound and the full name is polytetrafluoroethylene. This polymer has the lowest coefficient of friction in nature. The coefficient of friction of PTFE-PTFE is 0.01, for steel 0.7. In addition, PTFE has a non-stick coating. By applying a PFA coating. FEP or PTFE create a thin film to which no substance adheres. The bonds between carbon and fluorine are so strong that practically nothing can adhere to this fluoride.
We always ensure the highest quality of our technical non-stick and anti-corrosion coatings. If you commission us to coat details with a PFA or PTFE coating, you can rely on a comprehensive service – from advice on choosing a suitable non-stick coating to the timely execution of the order and to satisfaction and the non-stick effect in the daily use. Thanks to the technical progress of our production, we can apply non-stick PTFE coatings to certain areas of complex geometric parts, e.g. B. on the inside surface of pipes, screw threads or by applying many layers to build a 1mm thick protective coating on the inside of the surface armor. The protective barrier produced in this way from ETFE or ECTFE protects the inside of the tank from the aggressive effects of alkalis and acids, which cause corrosion of the tank itself.
Can’t find what you’re looking for? Contact us anyway – we will find the right PTFE non-stick coating for your application. Regardless of whether it is a single or large series production. Our team of experts is the best specialist in the field of technical coatings in the country. Coating specialists!