[Case Study] Coating that extends the lifespan of polypropylene heat-welded sheets by five times.
FSR coating
We will introduce examples of the use of non-stick coatings that last five times longer in release effect compared to fluoropolymer coatings.
■Concern In the heat plate welding of polypropylene sanitary products, thread pulling is likely to occur, making a non-stick (release) coating on the heat plate essential. The customer was using a PFA coating, but it deteriorated quickly, requiring the heat plate to be replaced in about a week. ■Background In this case, where repeated contact/release with components occurs at high temperatures, the effectiveness of the coating diminished rapidly. Replacing the heat plate and reprocessing the coating requires adjustments to the equipment and preparation of spare parts. A coating that excels in non-stick properties and lasts longer in high-temperature environments was needed. ■Adopted Coating FSR (Fluoro Super Release) HR-372AP ■Adoption Process and Effects Yoshida SKT prepared several samples, including the "FSR coating," which was developed with the concept of excellent release properties at high temperatures. Before the actual machine test, we confirmed the release properties of these samples at our company, and it was decided to conduct a practical test with the "FSR coating," which has a proven track record in high-temperature environments. The release effect lasted over five times longer compared to the previous PFA coating. The lifespan of the coating was excellent, and it was adopted.
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■FSR (Fluoro Super Release) This is a fluorine-based release coating that combines release properties with "thermal hardness" (film hardness at high temperatures). Among fluororesins, PFA and FEP exhibit excellent release effects for molten resins, but as the usage temperature increases, the coating can become soft and may not be usable. Additionally, while PTFE has a low decrease in hardness when heated, it can be more difficult to release compared to PFA and FEP. FSR (Fluoro Super Release) achieves excellent thermal hardness that withstands use at temperatures above 200°C, in addition to release properties comparable to PFA and FEP. ■Features - Excellent release properties for molten resins - Release effect that does not diminish even under high-temperature conditions *For more details, please download the PDF or contact us.
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Applications/Examples of results
■Applications - Resin thermal welding plates - Heater plates - Release for adhesives, etc. - Adhesive mixing containers, blades, funnels, etc.
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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.