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  3. 松本加工
  4. Introducing the waterproof, dustproof, and insulation protection technology for various electrical components called "hot melt molding." Sealing is completed in just a few dozen seconds, achieving process improvement and cost reduction.
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  • Feb 07, 2025
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Feb 07, 2025

Introducing the waterproof, dustproof, and insulation protection technology for various electrical components called "hot melt molding." Sealing is completed in just a few dozen seconds, achieving process improvement and cost reduction.

松本加工 松本加工
The technology "Hot Melt Molding," which is expanding its adoption for waterproofing, dustproofing, and insulation protection of various electrical components, rapidly solidifies thermoplastic hot melt adhesives within molds, completing sealing in a short time of just a few dozen seconds. Compared to traditional urethane potting and epoxy potting, this technology allows for sealing to be completed in an ultra-short time, leading to alternatives aimed at process improvement and cost reduction. Additionally, because it involves mold forming, it offers high freedom of shape, receiving high praise for miniaturization and lightweighting of components. Our company, Matsumoto Processing, has been involved in the protection of many electrical components, including automotive electrical components, as a pioneer of this technology alongside our customers. We can achieve material selection, specification consideration, prototype shape design, mold manufacturing, and prototyping in a short time. Customers interested in this technology are encouraged to feel free to contact us.
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20250207-Matsumotokakou Hotmelt.pdf[0]

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Hot Melt Molding Case Studies Collection (All 26 Cases) & Technical Documentation

Waterproofing, insulation, and dustproofing for electrical components! We are currently offering a free collection of 'case studies and technical materials' filled with tips and know-how for process improvement!

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.

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Waterproof sealing of electrical components: Hot melt molding

"Complete sealing of electronic components in just a few dozen seconds. Ideal for waterproofing, dustproofing, and insulation!" Hot melt molding is gaining attention for the waterproof sealing of electronic components.

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.

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Waterproof sealing of substrates, sensors, etc. Hot melt molding.

Complete sealing of electrical components in just a few dozen seconds. Ideal for waterproofing, dustproofing, and insulation! Hot melt molding is gaining attention for the waterproof sealing of electrical components.

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.

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Hot melt molding for waterproofing, dustproofing, and cost reduction of circuit boards.

"Complete sealing of electrical components in just a few dozen seconds. Ideal for waterproofing, dustproofing, and insulation!" Hot melt molding is gaining attention for the waterproof sealing of electrical components.

"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.

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Hot melt contract molding for waterproofing of substrates and components ■ Matsumoto Processing ■

Complete sealing of electronic components in just a few dozen seconds. Ideal for waterproofing, dustproofing, and insulation! We offer contract processing for hot melt molding sealing.

"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.

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Introduction video for waterproof sealing of electrical components using hot melt molding.

Complete sealing of electrical components in just a few dozen seconds. Waterproof, dustproof, and insulated. We will introduce the introduction process and case studies of hot melt molding in a 5-minute video.

"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.

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Hot melt molding machine for waterproofing and dustproofing of circuit boards - Matsumoto Processing

【Hot Melt Molding Machine】 ▼From low-cost tabletop devices to mass production machines▼ ▼Many actual machines on display at the prototype lab (Fuji City)▼

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.

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Related catalog(6)

"Complete sealing of electronic components in just a few dozen seconds. Waterproof, dustproof, and insulated." Case studies on hot melt molding. ■Matsumoto Processing■

"Complete sealing of electronic components in just a few dozen seconds. Waterproof, dustproof, and insulated." Case studies on hot melt molding. ■Matsumoto Processing■

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"Complete sealing of electrical components in just a few dozen seconds. Waterproof, dustproof, and insulated." Case studies on hot melt molding (automotive parts) ■Matsumoto Processing■

"Complete sealing of electrical components in just a few dozen seconds. Waterproof, dustproof, and insulated." Case studies on hot melt molding (automotive parts) ■Matsumoto Processing■

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"Complete sealing of electronic components in just a few dozen seconds. Waterproof, dustproof, and insulating" - Polyamide-based hot melt for molding.

"Complete sealing of electronic components in just a few dozen seconds. Waterproof, dustproof, and insulating" - Polyamide-based hot melt for molding.

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"Complete sealing of electrical components in just a few dozen seconds. Waterproof, dustproof, and insulated." Hot melt molding machine MK600 ■ Matsumoto Processing ■

"Complete sealing of electrical components in just a few dozen seconds. Waterproof, dustproof, and insulated." Hot melt molding machine MK600 ■ Matsumoto Processing ■

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"Complete sealing of electronic components in just a few dozen seconds. Waterproof, dustproof, and insulated." Hot melt molding machine MK520 ■ Matsumoto Processing ■

"Complete sealing of electronic components in just a few dozen seconds. Waterproof, dustproof, and insulated." Hot melt molding machine MK520 ■ Matsumoto Processing ■

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"Complete sealing of electrical components in just a few dozen seconds. Waterproof, dustproof, and insulated." Hot melt molding machine MK700H by Matsumoto Processing.

"Complete sealing of electrical components in just a few dozen seconds. Waterproof, dustproof, and insulated." Hot melt molding machine MK700H by Matsumoto Processing.

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Fukuda's leak test, leak inspection, leak detection, leak test, integrity test.

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Fukuda Co., Ltd. has been pursuing leak detection for 60 years and is committed to advancing the future of leak testing. 【 Supporting Various Leak Tests: Air Leak Test / Gas Leak Test (Hydrogen Gas, Helium Gas) 】 We develop, manufacture, and sell leak testing equipment to inspect airtightness and sealing properties. We will propose the appropriate testers and devices for each inspection target. 【 Target Industries and Examples of Inspection Targets 】 - Automotive Industry: Engines, FC components, valves and piping, various parts - Electronic Components Industry: Smartphones, keyless switches, various small sensors - Pharmaceuticals / Food / Cosmetics Industry: Bottle containers, syringes, vials, eye drop containers, pillow packaging, PTP packaging We will propose the most suitable leak testers for each industry. 【 ISO Certification 】JIS Q 9001:2015 (ISO 9001:2015)

Jan 09, 2026

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WiSAS 6th Anniversary Project Free Wi-Fi Environment Visualization Campaign

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Spline Network Co., Ltd. (Headquarters: Shibuya, Tokyo; President: Yoichi Yukino) will hold a free campaign for its WiSAS environmental scan service, one of its vulnerability assessment services, to commemorate the 6th anniversary of the release of the Wi-Fi Security Assurance Series (hereinafter referred to as WiSAS).

Jan 09, 2026

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"Comprehensive Review of DX Initiatives in 2025! Guide for Formulating DX Strategies for the Manufacturing Industry Towards 2026" Released

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The end of the year and the beginning of the new year is an excellent time to reflect on the past year and plan for the next. How did your company approach DX in 2025? Did you consider implementing a production management system? Did you take a step forward in utilizing AI? This article provides a practical guide to objectively evaluate your DX efforts in 2025 and to formulate specific strategies for 2026. Why not take the time during the year-end and New Year to carefully review your company's DX strategy? For more details, please see the related links.

Jan 09, 2026

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[Update] Regarding the discontinuation of basic authentication (SMTP AUTH) for Microsoft Exchange Online and the response of our products (EUC Automatic Email Option).

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Microsoft has announced that it will end support for Basic Authentication in Client Submission (SMTP Authentication) for Exchange Online between March and April 2026. Once this support is discontinued, sending emails using Basic Authentication (SMTP AUTH) will no longer be possible. Therefore, we would like to provide information regarding the affected features and planned responses in the TECHS series as follows. Reference: Microsoft Information Exchange Online to retire Basic auth for Client Submission (SMTP AUTH) Retirement of Basic Authentication for Exchange Online Please see the related links for more information.

Jan 09, 2026

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Publication of the magazine "Tekunowa" Vol. 5, which connects users with each other.

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On December 15, 2025 (Monday), we published the magazine "Tekunowa" Vol. 5. ■ About the publication "Tekunowa" "Tekunowa" is a magazine published twice a year with the concept of "connecting the 'circle' of manufacturing companies that are users of TechnoA." It is distributed to user companies of the production management system "TECHS" series, as well as to various companies that have connections with us through opportunities such as exhibitions and visits to our company. We have previously introduced the innovative initiatives of user companies and received positive feedback. For more details, please see the related link.

Jan 09, 2026

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