PEEK coating on the inner surface of pipes | Prevents corrosion and metal ion leaching, maintaining purity.
Metal-free and PFAS-free chemical piping: A high-adhesion PEEK coating blocks metal exposure! It provides chemical resistance and corrosion resistance while maintaining the purity of the fluid.
This is a technical case study of PEEK coating applied to the inner surfaces of metal piping components (fittings and branch pipes) used in harsh environments such as chemical plants and semiconductor manufacturing lines. *The images provided are cross-sectional samples of coated parts to confirm the uniform coating formation on the inner surface.* In lines carrying corrosive fluids or ultra-pure chemical processes, the inner coating achieves "high corrosion resistance" and a "metal-free environment." **Main Improvement Effects from Implementation** ■ High chemical resistance and corrosion resistance Exhibits excellent resistance to acids, alkalis, and organic solvents. Prevents corrosion of the metal substrate and reduction in thickness over the long term due to chemical solutions. ■ Suppression of metal leaching (metal ion elution) The inner surface is completely coated with PEEK resin. Eliminates direct contact between the chemical solution and metal, preventing contamination (metal pollution) and maintaining high fluid purity. ■ High adhesion and low peeling risk Maintains strong adhesion against thermal cycles and fluid stress, preventing peeling and cracking of the coating. ■ Completely PFAS-free Avoids the use of organic fluorine compounds, mitigating environmental regulatory risks.
basic information
【Construction Technology】 PEEK Coating (Polyether Ether Ketone) 【Technical Features and Functions】 ■ Excellent Chemical and Corrosion Resistance Powerful protective function against strong acids, strong alkalis, and various organic solvents. ■ Metal-Free (Leaching Suppression) Blocks the leaching of metal ions from fluid contact surfaces, suitable for high-purity processes. ■ Excellent Adhesion and Thermal Durability Dense film that is resistant to peeling and cracking even in environments with thermal shock, flow velocity, and internal pressure. ■ Environmentally Friendly Complete non-use of PFAS (per- and polyfluoroalkyl substances). 【Applicable Substrates and Shapes】 ■ Various metal piping components (stainless steel, SUS, steel, various alloys, etc.) ■ Piping fittings, elbows, tees (branch pipes), inner surfaces of valve bodies, liquid contact areas of tanks and containers. 【Technical Support】 ■ We provide evaluation processing and consultation starting from a single prototype. Please note that construction may be difficult for pipes with small inner diameters (Φ10–50mm), curved pipes, or complex branching structures. For more details, please contact us.
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Model number/Brand name
PEEKCOAT
Applications/Examples of results
**Main Application Areas and Equipment** ■ Semiconductor and LCD Manufacturing Equipment High-purity chemical piping, flow path components for etching and cleaning equipment, fittings ■ Chemical and Plant Equipment Transport piping, branch pipes, and valves for corrosive chemicals (acids, alkalis, solvents) ■ Pharmaceutical and Precision Chemical Manufacturing Various reaction vessels and piping routes that are strongly required to be PFAS-free and non-contaminating
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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.