[Presentation of Materials] We will introduce the differences in features between Teflon fluoropolymer "PTFE" and "PFA" resins and coatings.
Differences in the characteristics of representative Teflon fluoropolymers "PTFE" and "PFA" ■ Resin Name PTFE (Polytetrafluoroethylene) ■ Characteristics This is the first fluororesin discovered and developed. It has a continuous use temperature of 260°C, excellent heat resistance, low friction properties, and non-stick characteristics. It has a high melt viscosity, making injection molding difficult, but it is used as a coating for frying pans and hot plates. ■ Resin Name PFA (Perfluoroalkoxyalkane Polymer) ■ Characteristics This is an improved resin of PTFE, with the same continuous use temperature of 260°C. It has a low thermal melt viscosity, allowing for molding such as injection molding. It can achieve a coating with fewer pinholes, which was not possible with PTFE, making it the fluororesin with the best performance for corrosion-resistant coating materials, including chemical resistance and heat resistance. Additionally, PFA is superior in non-stick properties for certain applications compared to PTFE, and it is also used as a coating material for release coatings, being processed for items like the inner pot of rice cookers. *For more details, please download the PDF and check.
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**Characteristics of Teflon Resin and Fluorine Resin** ■ Non-stick Property It has excellent release properties against strongly adhesive substances, meaning it does not stick or is difficult to stick. ■ Water and Oil Repellency It repels water and oil well when they come into contact with the surface. Therefore, it is resistant to dirt and can be easily cleaned. ■ Heat and Cold Resistance Among resins, it has high heat resistance, enduring high temperatures (up to 260°C). It also withstands low temperatures down to -260°C. ■ Low Friction It has a slippery surface with a low friction coefficient. Additionally, it exhibits excellent lubricity. ■ Chemical Resistance It is rarely affected or corroded by chemical substances such as acids and alkalis. In the case of coatings, if the film is thin, it remains intact, but chemicals and solutions can penetrate the film and corrode the substrate, so a thicker film is applied to prevent substrate corrosion. ■ Electrical Properties It has high dielectric strength (the strength against dielectric breakdown), volume resistivity, and surface resistivity, making it excellent in electrical insulation.
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To maximize the performance of manufacturing equipment and machine parts, Yoshida SKT derives the "optimal solution" tailored to our customers from hundreds of surface treatment technologies. - Decreased productivity due to adhesive troubles - Instability in product quality due to friction - Early deterioration of equipment due to corrosion We respond to these challenges in the manufacturing field with our extensive track record and reliable technical expertise. In 1963, we began fluoropolymer processing. In 1968, we signed a licensing agreement with DuPont (now Chemours), supporting manufacturing innovations for over 2,000 customers across various industries, from automotive to medical and aerospace. Furthermore, in 2024, we are focusing on the development of next-generation products, such as PFAS-free coatings, contributing to the advancement of sustainable manufacturing. With a three-base system in Nagoya, Tokyo, and Yamaguchi, we flexibly respond to both mass production and custom orders. Our consistent quality management system ensures that we deliver reliable quality. For solving challenges in the manufacturing field, trust the surface treatment experts at Yoshida SKT.
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