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Coating Product List

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Non-adhesive and release properties sustained even in high-temperature environments! Surface treatment technology 'CHC'

Non-adhesive and release properties sustained even in high-temperature environments! Surface treatment technology 'CHC'

Proven to last three times longer! A new proposal featuring fluororesin and heat resistance! We are currently offering materials with case studies that showcase our unique coating technology.

CHC is Yoshida SKT's unique coating technology that uses ceramics. By combining ceramics with fluororesin, it is a new type of fluororesin coating that not only provides the usual "non-stick and release properties," but also has "less reduction in film hardness even in high-temperature environments." Currently, we are offering product materials that include a comparison table of physical properties with various coatings and case studies of companies that have solved their issues with CHC. ■Features - Non-stick properties equivalent to PTFE and PFA - High film hardness at temperatures above 200°C (compared to PTFE) *Based on internal testing *For more product details, please see the link below.

  • Resin mold

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What is 'fluororesin' that you can't ask about now? *Textbook on fluororesin available.

What is 'fluororesin' that you can't ask about now? *Textbook on fluororesin available.

You can relearn the basics of fluororesin coating! We are distributing a textbook filled with practical content, from fundamental information to tips for selection.

Types and characteristics of fluoropolymer resins, differences in functions and features in coatings, and other content that you may be hesitant to ask about are explained in detail. In addition to basic information, we also introduce practical tips for selection, suitable substrates for coatings, and case studies, all in a total of 38 pages. If you are interested, please feel free to download the materials. 【Contents (excerpt)】 ■ What are fluoropolymer resins ■ Explanation of the characteristics of fluoropolymer resins ■ Processing methods for fluoropolymer coatings ■ Tips for selecting fluoropolymer coatings ■ Suitable substrates for fluoropolymer coatings ■ Case studies of fluoropolymer coatings

  • Surface treatment contract service

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What is fluororesin coating (Teflon coating)?

What is fluororesin coating (Teflon coating)?

It has the property of repelling water and oil well, even when they are on the surface! It is also resistant to cold and can withstand low temperatures of -250°C.

"Fluororesin coating (Teflon coating)" is a surface treatment that imparts various properties of fluororesin to the surface of materials, achieving prevention of sticking and adhesion, reduction of friction, and protection of the materials. It exhibits excellent release properties even against strongly adhesive substances and is rarely affected by or corroded by chemicals such as acids and alkalis. The Teflon coating on household frying pans is an example of a fluororesin coating that utilizes the non-stick and heat-resistant characteristics of Teflon fluororesin to make it difficult for food to stick to the frying pan. 【Features and Effects】 ■ Non-stick: Excellent release properties even against strongly adhesive substances ■ Water and oil repellency: Effectively repels water and oil on the surface ■ Heat and cold resistance: Withstands high temperatures (up to 260°C) and low temperatures (down to -250°C) ■ Low friction: Has a low coefficient of friction, making it slippery ■ Chemical resistance: Rarely affected by or corroded by chemicals such as acids and alkalis ■ Electrical properties: High dielectric strength (resistance to dielectric breakdown), volume resistivity, and surface resistivity *For more details, please refer to the related links or feel free to contact us.

  • Coating Agent

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[Case Study] Coating that extends the lifespan of polypropylene heat-welded sheets by five times.

[Case Study] Coating that extends the lifespan of polypropylene heat-welded sheets by five times.

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.

  • Surface treatment contract service

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Teflon Coating "Method for Measuring Film Thickness"

Teflon Coating "Method for Measuring Film Thickness"

To use Teflon coating for a long time, not only selection and processing technology are important, but also quality inspection. Let me introduce Yoshida SKT's quality inspection.

Here, we will introduce the measurement inspection of Teflon coating thickness. When you consult about Teflon coating, if a thickness is agreed upon during the meeting, we will conduct a thickness measurement inspection during the post-processing inspection process to confirm whether the thickness has been processed according to the meeting or the order form. ■ Unit of Thickness In coating thickness measurement, the unit commonly used is "μm (micrometers)" = one-thousandth of a millimeter. ■ Specifications of Thickness The thickness varies depending on the specifications and applications. For fluororesin coatings, it is often around 20-50μm for general purposes and more than 300μm for corrosion-resistant applications. ■ Measurement Method In thickness measurement inspections, a thickness gauge is primarily used for confirmation. This method is a non-destructive type of inspection that does not damage the coating. The thickness gauge typically measures the thickness of the coating by pressing a probe, known as a "probe," vertically against the surface of the coating processed on the metal substrate. *For more details about the thickness measurement inspection, please visit our website via the link or contact us.

  • Surface treatment contract service

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Teflon Coating "Method of Pinhole Inspection"

Teflon Coating "Method of Pinhole Inspection"

To use Teflon coating for a long time, not only selection and processing technology are important, but also quality inspection. Let me introduce Yoshida SKT's quality inspection.

Why is it a problem if there are pinholes in the Teflon coating film in the first place? In a typical fluororesin coating (thickness: 20-50 μm), there are countless holes (pinholes) that are invisible to the eye and reach the substrate. For applications that require non-stick or slippery properties, these pinholes rarely have a negative impact on performance. However, in applications where corrosion resistance is required, chemicals can reach the substrate (metal) through the pinholes, causing corrosion and leading to holes or causing the coating to peel off. To eliminate pinholes, the coating can be thickened by applying multiple layers, ensuring that there are no pinholes that connect the coating surface to the substrate. At Yoshida SKT, we conduct inspections using insulation resistance meters, pinhole testers, and chemical detection methods according to the coating specifications and substrates. These methods are non-destructive tests that do not damage the coating film. *For more details on pinhole inspection, please visit our website via the link or contact us.*

  • Surface treatment contract service

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Improving the release properties of injection molding molds! Ultra-durable fluororesin coating 'Bicoat'

Improving the release properties of injection molding molds! Ultra-durable fluororesin coating 'Bicoat'

Improve the release properties of injection molding molds. An organic fluorine-based coating system suitable for applications with mechanical loads that have astonishing durability.

"Bycoat(R)" is a coating system that achieves the ideal functions of "release properties" + "sliding properties" + "wear resistance" by combining inorganic and organic surface treatment technologies. It withstands harsh usage areas such as injection molds and product guides, providing reliable release and sliding properties. Additionally, due to its excellent dimensional accuracy, it is suitable for areas requiring micron-level dimensional precision. 【Features】 ■ Incredible durability ■ High hardness and scratch resistance ■ Excellent wear resistance ■ Outstanding non-stick and release properties ■ Safe for use in molds requiring micron-level dimensional precision *For more details, please refer to the PDF materials or feel free to contact us.

  • Other surface treatment equipment

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Countermeasures for mold release troubles in injection molding machines: ultra-durable fluorine-based organic coating.

Countermeasures for mold release troubles in injection molding machines: ultra-durable fluorine-based organic coating.

Amazing durability that surpasses fluoropolymer coatings! Surface treatment suitable for applications with mechanical loads. *Product and case materials available.

Super Durable Fluoropolymer-based Organic Coating System 'Bicoat(R)' "Surface treatment of inorganic materials with hardness and wear resistance, such as metals and ceramics" + "Surface treatment of organic materials with release and sliding properties, such as fluorine and silicone" With our unique surface treatment technology, we have achieved an ideal durability of "Release + Sliding + Wear Resistance" in our coating system. It withstands harsh usage areas such as injection molds, providing reliable release and sliding properties. Additionally, due to its excellent dimensional accuracy, it is suitable for areas requiring micron-level precision. 【Features】 ■ Incredible durability ■ High hardness and scratch resistance ■ Excellent wear resistance ■ Outstanding non-stick and release properties ■ Safe for use in molds requiring micron-level dimensional precision *For more details, please refer to the PDF document or feel free to contact us.

  • Other surface treatment equipment

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[Surface Treatment Case] Coating Technology for Plastic Products

[Surface Treatment Case] Coating Technology for Plastic Products

Coating on plastic transport reels to improve the work environment and reduce the cleaning process.

Introducing a coating case for plastic carrier tape transport reels! ■Concern - Adhesive was adhering to the transport reels that wind the carrier tape, requiring solvent cleaning every time they were used. There was a need to reduce the burden of solvent exposure for workers and to streamline the cleaning process, prompting consideration of surface treatment. ■Solution Surface Treatment 'MRS Coating' MRS-200 ■Points for Treatment Selection - Can be processed on plastic reels at temperatures below 80°C - Excellent release properties with minimal adhesive adhesion - Release effect is sustained even during solvent wiping operations *For more detailed information about the case, please check our website! For details on surface treatment, you can download the PDF document or contact us.

  • Surface treatment contract service

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Surface treatment 'by application' used in semiconductor manufacturing equipment *Documentation available

Surface treatment 'by application' used in semiconductor manufacturing equipment *Documentation available

In semiconductor manufacturing equipment, various surface treatments that excel in chemical inertness, static electricity prevention, heat resistance, and chemical resistance are widely used.

■Applications such as semiconductor manufacturing lines - Selected surface treatment 'TEFLON (TM) fluoropolymer coating' ■Applications such as wafer and glass handling - Selected surface treatment 'SAFELON (R)' 'PBI, PI coating' ■Applications such as precision nozzles, MEMS components, optical lenses - Selected surface treatment 'NANOPROCESS (R)' ■Applications such as chemical supply tanks - Selected surface treatment 'TEFLON (TM) fluoropolymer coating' 'SAFELON (R) AP+' 'MY LINING (R)' ■Applications such as clean room walls, laboratory equipment, various tools - Selected surface treatment 'SERASHIELD F' ■Applications such as high-temperature equipment components (rolls, heater covers) - Selected surface treatment 'SGN coating' *You can download the PDF of the introduced surface treatment products. For detailed information about the products, please visit the "Yoshida SKT official website."

  • Surface treatment contract service

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Cleaning tasks become easier! "What is the non-stick property of fluoropolymer coatings?"

Cleaning tasks become easier! "What is the non-stick property of fluoropolymer coatings?"

The non-stick property makes it difficult for substances to adhere, making cleaning tasks easier. Here, we introduce the non-stick characteristics of fluoropolymer coatings.

■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 have excellent water and oil repellency, a large contact angle, and due to their molecular structure, they possess a property of being difficult to wet. 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 such functions are effective for release applications, applications where adhesion needs to be minimized, and for simplifying cleaning. 【Reference data on non-stick properties】 ■Surface free energy of solids (dyn/cm) PTFE…18.5 PFA…17.8 FEP…17.8 ETFE…22.1 Fluoropolymers have low surface treatment free energy and possess properties that make them difficult to bond with various liquids and solids. By coating with fluoropolymer, dirt is less likely to stick and becomes easier to clean. *For detailed information on fluoropolymer coatings and non-stick properties, please download the PDF or contact us.

  • Resin mold

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Explanation of fluoropolymer, a plastic material strong against chemicals.

Explanation of fluoropolymer, a plastic material strong against chemicals.

Fluororesin, famous for being resistant to acids and alkalis. I will explain the principle of why it does not dissolve in solvents such as acids and alkalis.

■Is the chemical resistance of fluoropolymer high? Fluoropolymers have high chemical resistance and do not dissolve, swell, or react with most acids, alkalis, and organic solvents. ■Reasons for the high chemical resistance of fluoropolymers A major reason for the excellent chemical resistance of fluoropolymers is their stable molecular structure. Fluoropolymers are high molecular weight polymers with carbon atoms and fluorine atoms bonded in a linear chain structure. The bond energy between carbon and fluorine atoms (C-F) is very strong among chemical bonds, and furthermore, the C-C bond sections between carbon atoms are completely covered by fluorine atoms in a helical manner. Therefore, they remain inert when in contact with chemicals or solvents, and do not degrade or dissolve as a resin, which means they have excellent chemical resistance. ■Uses of fluoropolymers The chemical resistance of fluoropolymers is utilized in the chemical industry, semiconductor industry, and medical and pharmaceutical fields in products such as: - Various gaskets - Seals - Piping and hoses - Storage tanks - Reaction vessels - Heat exchangers *For more details, please download the materials or refer to the link below.

  • Surface treatment contract service

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High-slip lubricating plastic material: fluororesin.

High-slip lubricating plastic material: fluororesin.

What makes fluoropolymer, particularly PTFE, excellent in terms of sliding properties among plastics? We will introduce its characteristics, focusing on the lubricity and low friction of fluoropolymer PTFE.

■Types of Lubrication Lubrication can be broadly divided into liquid lubrication using liquids and solid lubrication using solids. A representative example of liquid lubrication is lubrication with oil. On the other hand, lubrication with fluororesin falls under the category of solid lubrication. ■Characteristics of Solid Lubrication Solid lubrication is used in cases where liquids cannot be used or when liquids may evaporate or detach in a vacuum. For example, when sliding products, solid lubrication is helpful in situations where liquid lubricants may dirty the products. ■Low Friction and Sliding Properties of Fluororesin (PTFE) Fluororesin has a low coefficient of friction and is utilized for solid lubrication. PTFE is structured such that fluorine atoms surround carbon atoms without gaps. The free energy of the fluorine atoms on the molecular surface is low, and the molecule has a very small polarity in its target structure. The low coefficient of friction of PTFE is believed to be influenced by this type of molecular structure. ■Reasons for the Low Coefficient of Friction of Fluororesin PTFE → Please check the basic information section for more details.

  • Other Auto Parts

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[Case Study] Surface Treatment to Enhance Release Properties of Biodegradable Plastic Molding Dies

[Case Study] Surface Treatment to Enhance Release Properties of Biodegradable Plastic Molding Dies

We will introduce examples of surface treatments to enhance the release properties of biodegradable plastics and improve molding troubles.

■Concern Due to the different moldability of biodegradable plastics compared to regular plastics, there were issues with mold release in the prototypes, leading to molding troubles. ■Background We received this consultation because there is no track record of surface treatment with the materials being molded, and we do not know the appropriate surface treatment. ■Coating Adopted Bicoat Exceed NYK-2000E ■Adoption Process and Effects At Yoshida SKT, we prepared a collection of samples suitable for mold release from molding molds, and confirmed the release properties with actual plastics. We processed the well-performing NYK-2000E into the prototype mold, and it has been used without issues for several months. *Detailed surface treatment materials can be downloaded as a PDF.

  • Surface treatment contract service

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Thin film fluoropolymer coating "NCFPC Series" with excellent lubricity.

Thin film fluoropolymer coating "NCFPC Series" with excellent lubricity.

Super-thin film fluorine coating with excellent water and oil repellency!

The "Nano Process NCFPC Series" features an ultra-thin fluorine coating that excels in liquid repellency, such as water and oil, compared to fluoropolymer coatings, improving liquid drainage and flow. It causes almost no dimensional changes and maintains optical properties, making it possible to process "precision parts" and in fields that require high dimensional and surface accuracy, where fluoropolymer coatings have previously been difficult. <Examples of Applications> - Improvement of liquid drainage for water and oil - Improvement of liquid flow for water and oil - Prevention of oil diffusion in bearing components, etc. Additionally, Nano Process has been renewed with three other new functions, each with different features and applications. [Features of Each Series] ■ TC-10S Excellent precision, visible light transmittance, water repellency, and oil repellency ■ TLS Series Superior non-stick properties against adhesive materials like tape ■ HP Series Excellent hydrophilicity Currently, we are offering technical materials summarizing the details of each series. If you are interested in more details or are facing challenges with surface treatment in the precision field, please download the materials or contact us directly.

  • Other semiconductors

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