What are the measures against edge chipping and dulling due to pre-painting treatment (sandblasting)?
Explanation of mechanical damage to be cautious of during blasting treatment for fluororesin coating and PEEK coating on blades and sharp parts.
In fluororesin coatings and PEEK coatings, sandblasting is performed to ensure adhesion. However, for products with cutting edges or sharp edges, impacts from blasting may cause chipping of the cutting edge, edge deformation, or partial distortion. Especially for precision cutting tools and thin-edge shapes, even slight changes in shape can affect performance, making prior consideration important. Our company proposes processing conditions that take into account the balance between product protection and coating adhesion by adjusting blasting media, projection pressure, and changing substrate treatment methods. Please feel free to consult us when considering coatings for industrial cutting tools and cutter components.
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basic information
In fluororesin coatings and PEEK coatings, surface preparation is performed using sandblasting to improve the adhesion of the coating film. During the blasting process, abrasive materials such as ceramic microparticles are sprayed with compressed air, which applies mechanical stress to the substrate surface. Particularly for products with sharp shapes such as blades, cutters, and edge components, there is a possibility of chipping or dulling of the cutting edge. Additionally, in thin-walled shapes, partial deformation or dimensional changes may occur. Our company optimizes blasting pressure, media particle size, and projection conditions based on the substrate shape and application, and, if necessary, changes the surface preparation method while considering quality maintenance in the coating process.
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Applications/Examples of results
- Non-stick coating for industrial cutter blades: Provides release properties while minimizing impact on the blade edge. - Fluororesin coating for packaging machine cutting parts: Adjusts blasting conditions to reduce edge droop. - Adhesion-resistant coating for food processing knives: Achieves improved cleanability and prevents adhesion. - Functional coating for resin processing cutting blades: Balances wear reduction and prevention of resin adhesion. - PEEK coating for precision edge components: Balances improved wear resistance and shape retention. Coating proposals optimized for processing conditions can be made according to application and blade edge shape.
Company information
Nikken Coating Industry Co., Ltd. has been a specialized manufacturer of functional coatings for contract processing, earning the trust of customers across various industries for 79 years since its founding. We leverage our processing technology to maximize the properties of fluororesins, such as non-stick, lubricity, and chemical resistance, providing high-performance coatings that directly address customer challenges, including "Thermo Pro Release" for thermal welding processes and "NonStick STC" for blades and precision molds. In recent years, in response to movements regarding regulations on fluorinated compounds (PFAS), "PEEK resin," which is gaining attention as a substitute for fluororesins, has become a focus. Nikken Coating Industry commercialized the world's first PEEK resin coating, "PEEKCOAT," in 1999. Based on the solid knowledge and know-how accumulated over more than 20 years, we are further intensifying our research and development efforts to explore the potential of next-generation PEEK coatings! We aim to be recognized as "the go-to for PEEK coatings" and will continue to lead the way. As "the best partner for functional coatings that builds trust through technology," Nikken Coating Industry will continue to contribute to the creation of high-quality, high-performance products.
