エプテック List of Products and Services

Common issues that can arise from aluminum plating processes include "peeling and blistering" and "white spots and discoloration." Eptech possesses advanced plating technology to solve these problems, particularly with excellent technical know-how in the "pre-treatment process," which determines the quality of the plating. We can provide stable quality aluminum plating. Please feel free to consult with us. 【Features】 ■ Capable of plating various aluminum materials and gauges ■ Flexible response to project-specific needs by using both automatic and manual lines ■ Pre-treatment applications tailored to each type of aluminum material ■ Over half a century, we have provided surface treatment technology to more than 1,500 companies *For more details, please refer to the materials. Feel free to contact us as well. Please also check the list of characteristics for various plating processes.

• Plating Equipment

Free access to the processing characteristics quick reference chart for "Plating and Surface Treatment" is now available! The "Processing Characteristics Quick Reference Chart for Plating and Surface Treatment" is a document that summarizes the characteristics of 11 types of plating and surface processing in an easy-to-understand quick reference format. The type and characteristics of plating and surface treatment can greatly change their applications. Our company offers suitable proposals based on the experience and knowledge we have cultivated among various surface treatment processes. If you have any inquiries regarding plating and surface treatment, please feel free to consult us for prototypes, single items, or mass production. 【Listed Processing Methods】 <Electroplating> ■ Copper Plating ■ Nickel Plating ■ Decorative Chrome Plating ■ Hard Chrome Plating ■ Gold Plating (Au-Co Plating) <Electroless Plating> ■ Electroless Nickel Plating ■ Fluoropolymer Lubricating Plating ■ Electroless Gold Plating (Replacement Gold) ■ Black Electroless Nickel Plating <Others> ■ Electrolytic Polishing (SUS only) ■ Passivation Treatment (SUS only) ※ For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service

This document introduces examples of processing using our company's plating and surface treatment technologies. It includes treatment methods that respond to needs such as wanting to harden the surface of products, enhance conductivity, and reduce friction coefficients. A quick reference table of effects according to treatment items is also included. ★ Plating treatment for aluminum products is also available! These treatments can be utilized for parts of semiconductor manufacturing equipment, labor-saving devices, robot-related products, and lightweight and functional improvements for battery components used in EV vehicles. Please feel free to contact us. 【Technologies Featured】 ■ Electroless nickel plating ■ Fluoropolymer lubricating plating (Ni-P/PTFE) ■ Nickel plating ■ Decorative chrome plating ■ Hard chrome plating ■ Electroless (replacement) gold plating ■ Stainless steel electrolytic polishing ■ Stainless steel passivation treatment *For more details, please refer to the "PDF Download."

• Surface treatment contract service

The "stainless steel passivation treatment" is a surface treatment that makes stainless steel more resistant to rust. This technology forms a strong and stable passive film on the surface by immersing the product in a solution with strong oxidizing power under specific conditions. It strengthens the passivation film on the stainless steel surface and improves corrosion resistance. 【Features】 ■ It is possible to further enhance the corrosion resistance of stainless steel. ■ There is almost no change in product appearance or dimensions. ■ Excellent cleaning effect allows for the removal of contaminants, such as dissimilar metals, which can be the starting point for corrosion on the surface of parts. ■ Further improvement in corrosion resistance can be achieved when used in conjunction with electropolishing. ■ Effective for most types of stainless steel. *Some types of stainless steel may not be suitable for treatment, or it is recommended to use it in conjunction with electropolishing. *For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service

"Environmentally Friendly High-Precision Electroless Ni-P Plating" is a functional plating suitable for parts that require particularly high-precision film thickness management. Using a chemical reduction method without an external power source, it can uniformly apply a corrosion-resistant plating to products with complex shapes. The amorphous Ni-P alloy coating demonstrates excellent corrosion resistance without the use of a base plating. 【Features】 ■ Uniform deposition ■ High corrosion resistance ■ Wear resistance ■ Non-magnetic ■ Excellent environmental characteristics without the use of harmful substances such as lead and hexavalent chromium *For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service

We offer a "Same-Day Service for Urgent Items." If you contact us by the day before the desired processing date and deliver the materials to be processed by 9 AM on the same day, we can ship single items or small lots on the same day. We can provide high-precision electroless nickel (Ni-P) plating, as well as fluoropolymer lubrication plating. 【Features】 ■ Prototyping and single items ■ Same-day shipping if received by 9 AM ■ Short delivery times ■ A wide range of options including high-precision electroless nickel (Ni-P) plating and fluoropolymer lubrication plating *For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service

"Stainless Steel Electropolishing" is a surface treatment that polishes stainless steel materials electrochemically by using the product as an anode. Unlike mechanical polishing, it does not stress the workpiece and leaves no altered layer, allowing for a very clean metallic surface. It also enables fine burr removal, contributing to reductions in labor and costs. Many products that have undergone electropolishing are used in equipment that requires a clean environment, such as semiconductor manufacturing equipment, medical devices, and hard disk drives. 【Features】 ■ Does not stress the workpiece and leaves no altered layer ■ Achieves a very clean metallic surface ■ Allows for a high-quality glossy finish comparable to nickel-chrome plating ■ Selectively removes metal from edges and corners regardless of the shape of the workpiece ■ Enables reliable burr removal *For more details, please refer to the PDF document or feel free to contact us.

• Other abrasives

"Electroless nickel plating" is a plating process that does not use electricity, allowing for a uniform thickness of the plating, making it suitable for "complex shapes" and "dimensionally accurate items." Our company has introduced an automatic management system for plating solutions using electronic control, achieving high precision thickness management within ±10% of the required thickness. Additionally, due to the amorphous Ni-P alloy, it possesses characteristics such as high strength, high corrosion resistance, and non-magnetism. 【Features】 - Complies with RoHS, containing no harmful heavy metals like lead. - High precision management within ±10% of the specified thickness, making it suitable for surface treatment of precision parts. - Capable of plating difficult materials such as aluminum alloys, SUS, and various composite materials. - Provides coatings with high strength, high corrosion resistance, and non-magnetism due to the amorphous plating. Our company can flexibly accommodate orders from a single small part to large items and mass production lots. We offer a "one-day service" where items submitted in the morning can be ready by the evening. Please consult us for more details! *For more information, please refer to the PDF materials or feel free to contact us.

• Other metal materials

"Stainless Steel Passivation Treatment" is a process that further enhances the corrosion resistance of stainless steel, which is generally said to be rust-resistant. It can be applied to all types of stainless steel, is colorless and transparent, and does not change the appearance after treatment. Additionally, there is no dimensional change, so it is also possible to treat the surface after applying a design. 【Features】 ■ Colorless and transparent; no change in appearance after treatment ■ Applicable to all types of stainless steel ■ Removes surface dirt from components, such as natural adhesion ■ Improves corrosion resistance *For more details, please refer to the PDF document or feel free to contact us.

• stainless

"Electroless gold plating" is an electroless process, allowing for a uniform coating on parts with complex shapes. The purity of the deposited film is 99.9%, resulting in a coating that is almost pure gold, with excellent heat resistance and solderability. Additionally, because it is an electroless process, a uniform coating can be achieved on parts with complex shapes. Furthermore, our company accepts orders starting from a single small part, with short lead times and low costs. [Features] ■ Excellent uniform coating on parts with complex shapes ■ High purity gold coating ■ Superior uniformity of the coating ■ Short lead times and low costs for single items and prototypes *For more details, please refer to the PDF document or feel free to contact us.

• stainless

"Hard Gold Plating" offers high wear resistance and electrical conductivity, as well as excellent solderability and low contact resistance. By containing cobalt, its hardness is improved several times compared to pure gold plating. Due to its excellent wear resistance and high electrical conductivity, it is mainly used in parts with frequent movement, such as contact points in electronic device switches. It is also suitable for gold plating of various connectors, contacts, and fine components. Our company, through its unique know-how, is capable of achieving uniform plating on the inner surfaces of fine components such as pins and fine-diameter pipes like contact probes. 【Features】 ■ High hardness and excellent functionality ■ High wear resistance ■ High electrical conductivity ■ Low contact resistance ■ Hardness improved several times compared to pure gold plating ■ High electrical conductivity *For more details, please refer to the PDF document or feel free to contact us.

• connector

"Hard chrome plating" is applied in various fields as a functional plating with many mechanical properties. Its coating hardness can reach approximately Hv900 to 1000, making it particularly suitable for products that require high wear resistance. Additionally, it is possible to achieve a thickness of 0.1mm to 0.2mm, allowing for applications such as the repair of various components. Our company provides stable quality through a wealth of technical specifications, including unique tool know-how and masking techniques for partial plating that we have cultivated since our establishment. If you are facing challenges with hard chrome plating for precision parts that require relatively high accuracy, please feel free to consult us. [Features] ■ Many mechanical properties ■ Applications in various fields ■ High wear resistance ■ Applicable for the repair of various components *For more details, please refer to the PDF document or feel free to contact us.

• Optical Experimental Parts

"Nickel plating" is used as a base for gold plating, decorative chrome plating, and other applications, and due to its excellent properties, it is also applied in various fields on its own. Our company adopts copper plating as a base for nickel plating, accurately supporting various precision machine parts and electronic equipment parts that require corrosion resistance, appearance, conductivity, and electromagnetic wave shielding. Our outstanding quality has earned us strong trust from many users. Additionally, we have introduced "boron-free" nickel plating solutions, practicing plating processes that have a low environmental impact. 【Features】 ■ Base plating of Au, Cr, Sn, etc. ■ Rust prevention, appearance, conductivity, solderability, electromagnetic wave shielding, etc. ■ Responding to diverse needs ■ Low cost for a wide range of needs ■ Plating processes with low environmental impact *For more details, please refer to the PDF materials or feel free to contact us.

• Other metal materials

As an indispensable surface treatment in our surroundings, "decorative chrome plating" is used in various fields, including residential materials such as precision machinery and various faucet fittings, household goods, and automobiles. Decorative chrome plating involves first applying a relatively thick layer of copper and nickel plating, followed by a thin layer of chrome plating of about 0.3μm on the surface. Our company has established a production system with a fully automated line that boasts one of the leading capabilities in decorative chrome plating in Japan. We accurately reproduce the craftsmanship cultivated over many years with high-level production equipment. 【Features】 ■ Beautiful luster ■ Excellent corrosion resistance ■ Stability ■ Long-lasting beautiful appearance ■ Decorative use for exterior parts *For more details, please refer to the PDF document or feel free to contact us.

• Other metal materials

"Electroless Ni-P/PTFE composite plating" is an electroless plating that contains PTFE (polytetrafluoroethylene) particles. Depending on the content of PTFE, it exhibits characteristic functionalities such as wear resistance and water repellency. It is a new type of functional plating that disperses and co-deposits fluororesin (PTFE) in electroless nickel plating. The coating combines the corrosion resistance, wear resistance, and uniformity of electroless nickel plating with the self-lubricating, water-repellent, and non-stick properties of PTFE, making it applicable in various industrial fields. [Typical Coating Characteristics] ■ Self-lubricating… Excellent sliding properties due to the self-lubricating nature of PTFE ■ Non-stick… Excellent release properties in molds due to the non-stick coating ■ Low friction and wear resistance… Approximately 70% improved wear resistance compared to electroless Ni-P coatings ■ Water repellency… Excellent water repellency with a contact angle comparable to Teflon coatings *For more details, please refer to the PDF document or feel free to contact us.

• Plating Equipment

By achieving "no use of sulfur-based additives," which was not possible with conventional low-phosphorus electroless Ni-P plating, it has become possible to maintain the long-term wettability of solder, which has been a bottleneck until now. Due to its excellent uniformity in film thickness, plating can be performed without variation even on shapes such as heat sink fins. 【Features】 - The phosphorus (P) content of the Ni coating is low at 2-4 wt%, resulting in minimal "nickel consumption" during solder joining, enabling highly reliable solder joints. - Since sulfur-based additives are not used, it can maintain long-term wettability of solder, and the resulting plating film has excellent discoloration resistance and acid resistance. - A high hardness coating of Hv680 can be obtained without post-plating heat treatment, providing excellent wear resistance. *For more details, please refer to the PDF document or feel free to contact us.

• Plating Equipment

Since our establishment over half a century ago, we have been providing high-performance "plating and surface treatment technology" in various fields such as electronics, medical, automotive, and precision parts. We propose speedy solutions with a motto of high functionality and high quality. 【Features】 ■ Abundant Track Record Since our founding in 1960, we have assisted over 1,500 customers, and our ongoing transactions with more than 350 companies are a testament to our reliability and trust. ■ High Quality "Made in Suwa" Suwa, located in Nagano Prefecture, is one of Japan's leading hubs for precision processing. The plating and surface treatment technology cultivated in this region over half a century is highly regarded by customers nationwide. *For more details, please refer to the PDF materials or feel free to contact us.

• Plating Equipment

Epitech Co., Ltd. has been responding to various surface treatment needs since its establishment, continuously pursuing technological and production innovations. Many needs, such as wanting to harden the surface of products, enhance conductivity, or reduce friction coefficients, can be achieved relatively cost-effectively through surface treatment technologies primarily based on plating. At Epitech Co., Ltd., we provide high-quality surface treatment as the final process of products with short delivery times. For plating and surface treatment, please consult us for prototypes, single items, or mass production. 【Product Line】 ○ Electroplating ○ Electroless plating ○ Electrolytic polishing and chemical polishing ○ Chemical treatment and others For more details, please contact us or download our catalog.

• Surface treatment contract service