Fluororesin Coating: "What is the Non-Stick Property of Fluororesin?"

What are the characteristics of the representative property of fluoropolymer coatings, specifically Teflon coatings, known as "non-stick"? Here, we will introduce the non-stick functionality.

■ The "Non-Stick Property" of Fluoropolymer Non-stick property refers to the characteristic of being easy to release and not adhere, or to adhere less, even to strongly adhesive substances. For example, fluoropolymers excel in water and oil repellency, have a large contact angle, and possess a property of being difficult to wet due to their molecular structure. The measure of wettability, "critical surface tension (γc)," is extremely low for fluoropolymers, making it easy for liquids to be repelled and difficult to wet. Coatings that utilize this functionality are effective for release applications, applications where adhesion needs to be minimized, and for simplifying cleaning. 【Reference Data on Non-Stick Property】 ■ Contact Angle of Water (°) PTFE ... 114 PFA ... 105-110 FEP ... 115 ETFE ... 96 ■ Contact Angle of n-HD (°) PTFE ... 34-45 PFA ... >45 FEP ... 41-45 ETFE ... 28 ■ Surface Free Energy of Solids (dyn/cm) PTFE ... 18.5 PFA ... 17.8 FEP ... 17.8 ETFE ... 22.1 *For detailed information on non-stick properties, please download the PDF or contact us.

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basic information

Fluororesin coating is a functional coating that possesses excellent properties such as: - Non-stick - Water and oil repellency - Heat and cold resistance - Low friction - Chemical resistance - Electrical properties Yoshida SKT has been engaged in fluororesin coating since 1963. In 1968, we signed a licensing agreement with DuPont in the United States. Among industrial fluororesin coatings, only manufacturers certified by Chemours (formerly DuPont) are permitted to use the name "Teflon (TM) coating." At Yoshida SKT, we provide coatings that maximize the properties of fluororesin according to our customers' needs. We respond flexibly from single items to mass production. We can propose processing tailored to the application and usage environment, even for parts of machines that exist only in one factory. We can handle everything from fine precision parts to large tanks. We can process a variety of items, from precision parts active in cutting-edge fields to tanks with a depth of 6 meters, using our own equipment.