松本加工 List of Products and Services

Our technology "Hot Melt Low-Pressure Molding" is increasingly being adopted for waterproofing and dustproofing automotive electrical components. Due to the following advantages, there are more cases of switching from two-component potting: 1. Sealing is completed in an extremely short time of just a few dozen seconds. 2. Since it is mold forming, there is a high degree of freedom in shape, allowing for miniaturization and weight reduction. 3. The equipment and molds are very compact and easy to introduce. This time, Matsumoto Processing will demonstrate Hot Melt Low-Pressure Molding at the exhibition venue. Please check the simplicity of the process and the compactness of the equipment in real-time. Additionally, we will showcase actual products that have adopted hot melt molding sealing from both domestic and international customers. We hope this will be helpful for your product development ideas. 【Exhibition Information】 Name: Automotive Technology Exhibition 2025 NAGOYA Date: July 16 (Thursday) - July 18 (Friday), 2025, 10:00 AM - 5:00 PM Venue: Aichi Sky Expo (Aichi Prefectural International Exhibition Center) Booth No: 221 Organizer: Japan Society of Automotive Engineers

• Other polymer materials
• Circuit board design and manufacturing
• Other Auto Parts

We will provide a sample of a 20×20mm substrate (with LED) molded and sealed with amber/black polyamide-based hot melt free of charge. Please feel free to check the texture in person. Additionally, a movie of the production of this sample is currently available on the YouTube video below. If you would like a sample, please do not hesitate to contact us. What is "hot melt molding"? It is a sealing method that uses a solvent-free, one-component thermoplastic adhesive to insert mold electronic components within a mold. It excels in environmental resistance characteristics such as waterproofing, dustproofing, and insulation, and it solidifies in a short time of just a few seconds, leading to its expanding adoption as a sealing method alternative to potting. Furthermore, the materials used in this method are primarily derived from natural fatty acids sourced from grains, making it an environmentally sustainable method. Examples of applications: - Automotive electronic components (interior/exterior of vehicles) - Electronic components for power tools - Electronic components for industrial equipment - Various sensors, switches, etc. - Components for outdoor equipment (such as agricultural machinery)

• Other Auto Parts
• Other polymer materials
• Electrical equipment parts

Complete sealing of electronic components in just a few dozen seconds. Ideal for waterproofing, dustproofing, and insulation! 'Hot Melt Molding' is a groundbreaking new technology for waterproof processing of circuit boards and electronic components that significantly reduces processing time compared to traditional methods. The sealing agent is primarily made from natural fatty acids derived from grains, making it excellent for sustainability. Our case study collection includes numerous examples where switching from potting to hot melt molding has led to reduced processing time and cost savings. Technical materials provide know-how on hot melt molding and waterproof processing of circuit boards and electronic components, including comparisons and benefits over traditional methods. ■ Currently, we are offering three types of case studies and two types of technical materials as a free gift ■ [Contents] ■ Hot Melt Molding Case Study Collection (16 pages, 15 cases) ■ Automotive Parts Application Case Study Collection (5 pages, 6 cases) ■ Mobile Device Application Case Study Collection (3 pages, 2 cases) ■ Hot Melt Molding Technical Materials (10 pages) ■ [Technical Material] Achieving VA by Switching from Potting (7 pages, 3 cases) * Please view the 'Hot Melt Molding Case Study Collection & Technical Materials' PDF available for download.

• Processing Contract
• Coating Agent
• Other electronic parts

"Hot melt molding," which is expanding as a waterproof sealing method for electrical components to replace potting. Compared to traditional two-component potting, the following advantages are being recognized, leading to its adoption: - Extremely short curing time. Hot melt molding completes sealing in just a few seconds. - Possibility of miniaturization and lightweight design. Since hot melt molding is directly insert molded into electrical components, it eliminates the need for a case, allowing for greater design freedom and achieving miniaturization and lightweight construction. - Sustainable materials. The PA-based hot melt we handle is derived from natural plant oils and is environmentally friendly. We have compiled the process for adopting hot melt molding and examples of adopted products into a video of about five minutes. Please check the video link below.

• Other polymer materials
• Coating Agent
• Other electronic parts

By replacing potting, we achieve cost reduction and miniaturization. Hot melt molding has the following advantages, and the transition from two-component potting is progressing. - Extremely short cycle time In hot melt molding, sealing is completed in just a few seconds. - Possibility of miniaturization and lightweight design Since it allows for direct insert molding of electronic components, there is no need for a case, and the high degree of freedom in shape enables miniaturization and lightweight design. - Sustainability The PA-based hot melts we handle are primarily made from natural vegetable oils, offering excellent environmental benefits. We have compiled materials on how potting and hot melt molding differ. Please download the materials. *For the "cost reduction" materials, please view the PDF data from the download.

• Other polymer materials
• Other electronic parts
• Coating Agent

Numerous examples of achieving value analysis (VA) by replacing the two-component potting process with hot melt molding are published! This is a technical case study document summarizing these examples from a process perspective. ■ Currently, we are offering technical documents and various case studies for free! ■ 【Published Information】 ■ Differences between potting and hot melt molding ■ Process flow implementation - Potting process ■ Process flow implementation - Hot melt molding ■ Application 1: Waterproof sealing of LED fixtures ■ Application 2: Waterproof sealing of micro switches ■ Application 3: Waterproof sealing of temperature sensors

• Other polymer materials
• Coating Agent
• Other electronic parts

"Hot Melt Molding" is a groundbreaking new technology for waterproofing substrates and electronic components that significantly reduces processing time compared to traditional methods. The case study collection includes numerous examples where switching from potting to hot melt molding has led to shortened processing times and cost reductions. The technical documentation provides know-how on hot melt molding and waterproofing of substrates and electronic components, including comparisons with traditional methods and their advantages. [Contents] ■ Hot Melt Molding Case Study Collection (16 pages, 15 cases) ■ Automotive Parts Application Case Study Collection (5 pages, 6 cases) ■ Mobile Device Application Case Study Collection (3 pages, 2 cases) ■ Hot Melt Molding Technical Documentation (10 pages) ■ [Technical Documentation] Achieving VA through Switching from Potting (7 pages, 3 cases) * Please view the PDF of the "Hot Melt Molding Case Study Collection & Technical Documentation" from the download section.

• Processing Contract
• Coating Agent
• Other electronic parts

Complete sealing of electronic components in just a few dozen seconds. Ideal for waterproofing, dustproofing, and insulation! Hot melt molding is gaining attention as a waterproof technology for circuit boards. What is hot melt molding? How is it different from potting? What is the process for implementation? We will answer these questions. In recent years, hot melt molding has been increasingly adopted in various fields such as automotive electronic components, mobile devices, home electronics, and IoT devices as a waterproofing method to replace potting, contributing to improved productivity and cost reduction.

• plastic
• Coating Agent
• Other electronic parts

We introduce the adoption of hot melt molding technology that demonstrates excellent sealing performance by directly injecting sustainable hot melt adhesives made from natural fatty acids into electronic components. □ Adoption Examples Waterproofing and dustproofing of circuit boards, waterproof connectors, sensor harnesses, harnesses, switches, etc. □ Benefits of Adoption 1. Reduction in the number of components 2. Reduction in the amount of resin used 3. Shortening of processing time ◆ If you would like a collection of case studies, please download the catalog. ◆ If you would like a sample of the actual product, please contact us.

• Other polymer materials
• Coating Agent
• Other electronic parts

"Complete sealing of electronic components in just a few dozen seconds. Ideal for waterproofing, dustproofing, and insulation!" Hot melt molding, which is gaining attention for waterproof sealing of electronic components, utilizes thermoplastic adhesives in low-pressure insert molding to achieve environmental protection such as waterproofing and dustproofing for electronic components like mounted circuit boards. Compared to traditional two-component potting and conformal coating, sealing is completed in an extremely short time, leading to an expansion in its adoption as a sealing technology. We propose a sustainable hot melt made primarily from natural fatty acids. At the Matsumoto Processing Lab, nine hot melt molding machines are installed, and you can observe the actual process of hot melt sealing electronic components. Customers interested in visiting are encouraged to inquire.

• plastic
• Coating Agent
• Other electronic parts

The MK520 is a low-pressure molding machine specifically designed for hot melt applications. By adopting a shuttle stage, it allows for molding to be performed in parallel with work set and work retrieval operations, achieving high productivity. Additionally, the injection system does not use heat hoses, which can cause material degradation and pressure loss, enabling precise injection control. 【Features】 ■ Excellent production capacity ■ Hose-free heating ■ Low cost ■ Parts procurement and assembly completed within China ■ Uses reliable OMRON products for PLC/HMI *For more details, please refer to the PDF materials or feel free to contact us.

• Molding Equipment
• Other electronic parts
• Coating Agent

The "MK700H" is a dedicated low-pressure molding machine for hot melt, with the maximum mold dimensions expanded to 300×200×150 (mm) and an enhanced clamping force of 75kN. This allows for the molding of larger insert works and molds with a high number of cavities, which were difficult to mold with the "MK600" and "MK520." By completing parts procurement and assembly within China, it achieves an astonishingly low price despite using a dual gear pump type for the discharge mechanism. By separating the workstation and melter, it also allows for customization, such as adding an injection nozzle. 【Features】 ■ Supports large area products ■ Low cost ■ Uses reliable OMRON products for PLC/HMI ■ High layout flexibility *For more details, please refer to the PDF materials or feel free to contact us.

• Coating Agent
• Other electronic parts
• Molding Equipment

The "MK600" is a compact low-pressure molding machine dedicated to hot melt, with a footprint of 900×1,200 mm. By eliminating heat hoses, which can cause material degradation and pressure loss, it establishes excellent productivity. It is covered on three sides (back and sides), and an area sensor is installed on the operator's side. By completing parts procurement and assembly within China, we have achieved an astonishing price for a dual gear pump type discharge mechanism. 【Features】 ■ Excellent safety ■ Hose-free ■ Low cost ■ Compact size ■ Uses reliable OMRON products for PLC/HMI *For more details, please refer to the PDF document or feel free to contact us.

• Molding Equipment
• Other electronic parts
• Coating Agent

The "MK-MELTER" is a hot melt melter that employs a dual gear pump, enabling stable discharge volume control while achieving an astonishingly low price. It uses pneumatic control for hydraulic pressure, allowing the hydraulic pressure to be controlled by the pressure of the air supplied externally. You can choose from five tank capacities: 3L, 5L, 10L, 15L, and 20L, according to the amount of hot melt used. Additionally, it can be used as a standalone unit, and it is designed to allow for pump rotation speed control and heater ON/OFF via external input. 【Features】 ■ Low cost ■ High versatility ■ Optimized design for hot melt molding applications ■ Tank capacity can be selected according to usage conditions *For more details, please refer to the PDF document or feel free to contact us.

• Molding Equipment
• Other electronic parts
• Coating Agent

The "MK10" is a manual hot melt molding machine. By minimizing movable parts, it achieves both low cost and safety. It can mold two types of molds alternately, resulting in high productivity. It is suitable for applications such as harness bush processing, and various customizations are possible according to customer requirements. 【Features】 ■ High productivity is achieved by molding two types of molds alternately. ■ Low cost and safety are balanced by minimizing movable parts. ■ The melter can be combined from low-cost types to high-end specifications. ■ The molding stage has high flexibility with left, right, and front three-sided openings. ■ Various customizations are possible according to customer requirements. *For more details, please refer to the PDF document or feel free to contact us.

• Coating Agent
• Other electronic parts
• Molding Equipment

I want to use hot melt molding, but... ▼ The equipment is too expensive to adopt. ▼ Since the products are in the range of dozens per lot, we cannot consume the materials. ▼ Due to fluctuations in production quantity, we want to create a buffer through outsourcing. ▼ I want to adopt it immediately, but... I can't wait for the equipment delivery time. We respond to such customer "troubles." Our company applies hot melt molding to parts such as circuit boards entrusted to us and returns them. - We can handle almost all types of molding hot melt materials, including polyamide-based, polyester-based, polyolefin-based, and reactive polyurethane-based. - Materials are kept in standard stock for each grade, minimizing the burden on our customers. Our factory is ISO 9001 certified and also supports encapsulation molding for automotive parts. ◆ Please feel free to contact us.

• EMS
• Coating Agent

Significant reduction in processing time and number of parts! Insert molding waterproof method that directly injects thermoplastic adhesive into electronic components! In recent years, adoption in automotive parts has been expanding. □ Adoption Examples Waterproofing and dustproofing of circuit boards, waterproof connectors, sensor harnesses, harnesses, switches, etc. □ Benefits of Adoption 1. Reduction in number of parts 2. Reduction in amount of resin used 3. Shortening of processing time ◆ If you would like a collection of case studies, please download the catalog.

• Coating Agent
• Circuit board design and manufacturing
• Other electronic parts

"I want to use hot melt molding, but I can't install the equipment." For such customers, our factory has installed nine hot melt molding machines, and we will perform hot melt molding on the insert work provided by the customer. We can provide a comprehensive response, including selection of sealing agents, prototyping, mold manufacturing, and contract sealing processing. Available hot melts: - Polyamide-based - Polyolefin-based - Reactive polyurethane-based ◆ If you are interested, please feel free to contact us.

• Other polymer materials
• Coating Agent
• Other electronic parts

▼VA: Switching of two-component potting agents ▼ ▼Waterproofing of substrates ▼ ▼Water sealing of terminals and connectors ▼ ▼Vibration damping of module components ▼ The hot melt adhesives we handle have a wide environmental temperature range of -40 to 140°C and are particularly well-established for sealing applications in automotive components. Additionally, they are sustainable products made primarily from natural fatty acids derived from grains. We will propose the most suitable hot melt adhesive based on your usage conditions. ◆ Our company consistently responds with in-house technology for selecting the optimal materials for your product specifications, designing molded products, conducting CAE analysis, and prototyping. Please feel free to contact us.

• Other polymer materials
• Coating Agent
• Other electronic parts

Hot melt molding, which is expanding its adoption for waterproof applications in electrical components. The MK series from Matsumoto Processing is a molding machine developed specifically for hot melt molding. It is compact and user-friendly, and has been introduced in many customers' factories. Additionally, we can accommodate customization and dedicated design of equipment according to customer requirements. Furthermore, we also support automation, including fully automatic inline machines. ◆ We have various devices on display at our prototype lab in Fuji City, Shizuoka Prefecture. Customers wishing to visit should contact us.

• Other polymer materials
• Molding Equipment
• Coating Agent

Our company has 20 years of experience in hot melt molding and utilizes 3D CAD/CAE systems to design, manufacture, and sell molds specifically for hot melt molding. ◆Please feel free to contact us.

• Other polymer materials
• Coating Agent
• Molding Equipment

【Features】 - Being in liquid form, it shows high wettability on the substrate surface, reducing thermal resistance. - There is great freedom in shape and thickness, making design easier. - Automatic application using a dispenser is possible. - It cures at room temperature, so there is no aging reduction like with thermal conductive grease.

• Other polymer materials
• Secondary Cells/Batteries
• Heat exchanger

A waterproof insert molding method that directly injects thermoplastic adhesives into electronic components! We have received many inquiries and requests in the past for applications such as LED lighting fixtures, decorative lighting, and optical sensors, but conventional materials had a strong yellow tint and issues with light transmittance. This time, we are introducing a material that not only supports low-pressure molding sealing of electronic components like traditional hot melts but also excels in light transmittance. <Expected products for use> - LED lighting equipment - Display devices using LEDs, etc. - Light-based sensors such as photo sensors and fiber sensors

• Other polymer materials
• Other electronic parts
• Coating Agent

Hot melt molding is a molding technology that involves injecting solvent-free, one-component thermoplastic hot melt adhesive into a mold under low pressure. This method is widely used for purposes such as dustproofing, waterproofing, vibration resistance, impact resistance, insulation, and housing functionality. In this catalog, we introduce a case where waterproof sealing of printed circuit boards has been replaced from urethane potting to hot melt molding. **Benefits of Hot Melt Molding** - It achieves significant process improvements by solidifying in just a few seconds. - Since it does not take time to solidify, it enables inline processing rather than batch processing like potting. - It realizes cost reduction in the process due to the above. - It allows for the creation of freely shaped designs in molds, achieving "compactness and lightweight." *For more details, please refer to the catalog or feel free to contact us.*

• Processing Contract
• Other electronic parts
• Coating Agent

Hot melt molding is a molding technology that involves injecting a solvent-free, one-component thermoplastic hot melt adhesive into a mold at low pressure. This method is widely used for purposes such as dustproofing, waterproofing, vibration resistance, shock resistance, insulation, and housing functionality. In this catalog, we introduce examples that address the desire to tidy up the internal wiring of small devices using hot melt molding technology. [Challenges] - Poor organization of internal wiring - When users open the housing for battery replacement, the appearance is not good [Benefits] - Fixing the harness in any shape with hot melt molding *For more details, please refer to the catalog or feel free to contact us.

• Processing Contract
• Other electronic parts
• Coating Agent

Hot melt molding is a molding technique that involves injecting a solvent-free, one-component thermoplastic hot melt adhesive into a mold at low pressure. This method is widely used for purposes such as dustproofing, waterproofing, vibration resistance, impact resistance, insulation, and housing functionality. In this catalog, we introduce examples of process improvement and value analysis through the switch from waterproof connector rubber bushings. [Challenge] We want to waterproof the wire insertion area. *For more details, please refer to the catalog or feel free to contact us.

• Processing Contract
• Coating Agent
• Automotive Connectors

Hot melt molding is a molding technology that involves injecting a solvent-free, one-component thermoplastic hot melt adhesive into a mold under low pressure. This method is widely used for purposes such as dust-proofing, waterproofing, vibration resistance, impact resistance, insulation, and housing functionality. In this catalog, we introduce a case where the process was improved by switching from potting to hot melt molding for waterproof sealing of LED modules. 【Conventional Method: Silicone Potting】 - A bathtub for polycarbonate molded products is created. - The module is placed in the case and secured. - Silicone resin is poured in and cured by heating for 80 minutes. ↓ 【Hot Melt Molding Method】 - Two modules are set on the mold. - Pressing the molding start button completes the sealing in 40 seconds. *For more details, please refer to the catalog or feel free to contact us.

• Other molds
• Coating Agent
• Other electronic parts

Hot melt molding is a molding technology that involves injecting a solvent-free, one-component thermoplastic hot melt adhesive into a mold at low pressure. This method is widely used for purposes such as dustproofing, waterproofing, vibration resistance, shock resistance, insulation, and housing functionality. Matsumoto Processing Co., Ltd. has responded to the request to encapsulate IC tags (fine wire coils) using resin molding. [Challenges] - IC tags that are coiled into an antenna shape. - While wanting to encapsulate them with resin molding, bending of the coil leads to wire breakage, making commercialization impossible. [Effects] - A hot melt with low melting viscosity is used (1,900 m·Pa·s). - By molding at an extremely low pressure of 0.5 MPa, encapsulation was achieved without damaging the coil. *For more details, please refer to the catalog or feel free to contact us.

• Processing Contract
• Other electronic parts
• Coating Agent

This is an introduction to a case where "hot melt molding technology" was adopted to achieve the miniaturization of portable antennas for PCs equipped with digital TV tuners. To miniaturize the antenna, it was essential to fold the antenna in half. To achieve this, it was necessary to mold it as a single unit, including the hinge. What made this possible was a method using hot melt resin that can be molded at ultra-low pressure, which is still not widely used in Japan. By combining three types of molding technologies—gas assist, carbon dioxide, and hot melt—we successfully shaped a folded antenna through integrated molding without using a single screw. 【Benefits of Implementation】 ■ Reduction of subsequent processes through integrated molding ■ Good results in environmental testing (thermal shock testing machine) *For more details, please refer to the catalog or feel free to contact us.

• plastic

We can create wool felt with a thickness ranging from 3t to 20t, as well as soft sponge with a thickness of 40mm, without the need for molds, starting from just one piece. Additionally, Matsumoto Processing Co., Ltd. also accepts processing of JIS standard dimension gaskets and custom-made orders. We can flexibly respond to processing of supplied materials and specified materials. We also accept production based on sketches or drawings (DXF) provided.

• mat

We will cut and process rubber rings with a width thinner than the thickness of the material, starting from just one piece. Since they are machined from rubber sheets, unlike molded products, we can create them to specified dimensions starting from a single piece. Additionally, Matsumoto Processing Co., Ltd. accepts custom orders for items other than JIS standard size gaskets. We can flexibly respond to processing of supplied materials and specified materials. We also accept production based on sketches or drawings (DXF).

• mat

We create special dimensions such as oval, irregular shapes, branch types, and handle types, as well as frames, using water jet, plotter, cutting processing, and end mill processing machines, from single pieces to mass production.

• Processing Contract

We process sheets made of rubber, Teflon, non-asbestos, etc. *We can also ship on the same day at the earliest. We can accommodate a variety of small-lot products using CAD for drawing! We provide products tailored to our customers' needs. Standard maximum outer diameter up to 1000mm. *Please feel free to contact us if the outer diameter exceeds 1000mm.

• Piping Materials

We accept custom orders for packing and gaskets. With a rich inventory of materials, we can produce and ship on the same day. For one-off productions, we offer cost-effective solutions using water jet cutting without the need for molds, and we ensure a stress-free experience with communication via DXF data. NC data is permanently stored for quick responses to repeat requests during maintenance. Mass production items are handled using automatic press machines.

• Piping Materials

Are there any tube-based liquid products that have been crushed or leaked inside your bag or toolbox? Is it becoming difficult to distinguish between similar containers? Is it all getting messy? In such cases, having a sample case that uses this "storage pad" can help you organize, as well as prevent damage and leaks. The example in the image is a storage solution for adhesives used on-site, created to fit a case from a 100 yen shop.

• tray

Processing of sponge material. No mold is required for processing with a water jet cutter, making it cost-effective.

• Other polymer materials

Are you having trouble organizing frequently used tools and parts on your workbench or desk? Are you struggling to confirm the collection of tools? Since we create custom-made solutions tailored to the shape of the items, you can achieve 2S and 3S standards, and expect preventive effects against loss and other issues. Additionally, it can be used to protect parts during movement. 《Features》 ◆ You don’t need to send the actual items. ◆ We can create from just one piece based on a JPEG image. ★ For more details, please refer to the catalog or feel free to contact us.

• tray

Hydraulic hoses and high-pressure hoses. We can respond to ultra-short delivery times by handling various stock in-house assembly. Same-day pickup and shipping are available. For urgent breakdowns. Additionally, since we sell stock in smaller quantities, we can produce at a low cost. Please feel free to contact us. [Contact: 0545-57-5680]

• Hydraulic Equipment

Matsumoto Processing Co., Ltd. offers custom-made desk mats and table mats. We can flexibly accommodate everything from standard shapes to special shapes. You can also freely set up escape holes for power cords and outlets. 【Features】 ■ Flexible response to everything from standard shapes to special shapes ■ Special shapes can be accommodated if you provide drawings, templates, or sketches ■ Escape holes for power cords and outlets can also be freely configured *For more details, please refer to the PDF document or feel free to contact us.

• mat

We process sheets made from packing, gaskets, rubber, sponge, and non-asbestos materials. *Same-day shipping is available for the shortest delivery time. We can also accommodate a variety of small lot products using CAD for drafting! We provide products tailored to our customers' needs. Standard maximum outer diameter is up to 1000mm. *Please feel free to contact us if the outer diameter exceeds 1000mm.

• Contract manufacturing

We will handle rubber materials using a combination of end milling and other processing methods. * Water jet and cutting plotter * Die cutting using a Thomson type * Milling with an end mill We will accommodate both individual and combined processing. *For more details, please refer to the PDF document or feel free to contact us.*

• Contract manufacturing

Uses * 2S and loss prevention for tools and equipment * Organizing desk stationery * Trays and storage for portability, etc. Depending on ideas Even without sending the actual product, we can accommodate requests based on CAD drawings (DXF), images (JPEG), or templates.

• Contract manufacturing

Used for transportation within the project, - Oil-resistant - Washable - Capable of supporting metal parts A sturdy partition... In response to these requirements, a partition as shown on the left was created using foam resin board.

• Processing Contract

Matsumoto Processing Co., Ltd. offers custom-made production of sponge material trays and cases. We respond flexibly from molding to design and manufacturing. We also accept production based on measurements of existing items or by providing drawings (DXF).

• mat

We accommodate various materials such as non-asbestos joint sheets, Teflon, fluororubber, synthetic rubber, silicone, and more.

• Processing Contract