[For Waterproofing Circuit Boards!] Technical Document: Introduction to Hot Melt Molding
Hot melt molding, which is gaining attention as a waterproof sealing method alternative to potting. Sealing is completed in just a few dozen seconds per cycle. Contributes to cost reduction!
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.
basic information
What is hot melt molding? Advantages of hot melt molding How to get started with hot melt molding? We will answer such questions. ■Please download the catalog from below. Matsumoto Processing will respond quickly to your needs by proposing the optimal hot melt solution, modeling sealing shapes, designing and manufacturing molds, and creating prototypes based on your product reliability requirements. For customers wishing to implement hot melt sealing processes in-house, we provide comprehensive support including the manufacturing and sales of molding machines and molds, development of molding parameters, process startup assistance, and hot melt supply. For customers who wish to outsource hot melt sealing, we offer contract molding services at our factory.
Price range
Delivery Time
Model number/Brand name
Low Pressure Molding, Hot Melt Molding, Waterproof and Dustproof, Encapsulation Molding
Applications/Examples of results
- Waterproof sealing of automotive parts (electrical components) - Waterproof sealing of mobile device parts - Waterproof sealing of home electronics device parts - Waterproof sealing of IoT devices (sensors, etc.) and more In particular, there are many cases where customers who traditionally used two-component potting have adopted hot melt molding for cost reduction and process improvement. By switching to hot melt molding, it is possible to achieve cost reduction and miniaturization.
Detailed information
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Example of waterproof sealing for agricultural machinery substrates. The left photo is before sealing, and the right photo is after sealing (the black part is the hot melt molded section).
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Example of encapsulation for industrial equipment circuit boards. The left side of the photo shows before encapsulation, and the right side shows after encapsulation (the black area is the hot melt molded part).
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Example of prevention sealing for motor stators: The amber-colored part covering the circuit board and surrounding the coil in the photo is hot melt molded.
Related Videos
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For waterproofing, dustproofing, and insulation of electrical components. The spotlight is on the sealing technology "Hot Melt Molding." Complete sealing of electrical components is achieved in just a few seconds.
"Complete sealing of electrical components in just a few dozen seconds. Ideal for waterproofing, dustproofing, and insulation!" Hot melt molding, which is gaining attention for waterproof sealing of electrical components, uses thermoplastic adhesives in low-pressure insert molding to achieve environmental protection such as waterproofing and dustproofing for electrical 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. Now, at Matsumoto Processing Lab, nine hot melt molding machines are installed, and you can observe the process of hot melt sealing electrical components. Customers wishing to visit are encouraged to inquire.
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Waterproof and insulation protection for small motors in a short time. The spotlighted sealing technology "Hot Melt Molding."
"Complete sealing of small motors in just a few dozen seconds. Ideal for waterproofing, dustproofing, and insulation!" Hot melt molding, which is gaining attention for waterproof sealing of small motors, is a technology that achieves environmental protection such as waterproofing and dustproofing by low-pressure insert molding of thermoplastic adhesives. Compared to traditional thermosetting resin sealing, two-component potting, and conformal coating, sealing is completed in an extremely short time, leading to its expanded adoption as a sealing technology. If you are considering waterproof sealing and protection for small motors, please feel free to contact us.
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For waterproofing, dustproofing, and insulation of electrical components. We present a small desktop molding device for the spotlighted sealing technology "hot melt molding" in a video. Complete sealing of electrical components is achieved in just a few seconds.
"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, is a technology that achieves environmental protection such as waterproofing and dustproofing by low-pressure insert molding of thermoplastic adhesives onto 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 the adoption of this sealing technology. Now, our company, Matsumoto Processing, is selling a compact tabletop molding device for hot melt molding called the "MK500." We have introduced this machine in a video on YouTube. Please take a look. (You can watch the video via the link below.) Thank you very much for your attention.
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Sustainable electrical component sealing technology "Hot Melt Molding." Suitable for waterproofing and insulation of electrical components. Achieves complete sealing in a short time.
"Complete sealing of electrical components in just a few dozen seconds. Ideal for waterproofing, dustproofing, and insulation!" Hot melt molding, which is gaining attention for waterproof sealing of electrical components, uses thermoplastic adhesives in low-pressure insert molding to achieve environmental protection such as waterproofing and dustproofing for electrical components like mounted circuit boards. Compared to traditional two-component potting and conformal coating, sealing is completed in an extremely short time, leading to its expanded adoption as a sealing technology. Additionally, due to the following features, it is also gaining attention as a sustainable sealing method: - The hot melt we handle is a solvent-free, one-component hot melt made primarily from plant-derived natural fatty acids. - The process does not require heating during the curing process, making it an energy-efficient operation. Now, at the Matsumoto Processing Lab, nine hot melt molding machines are installed, and it is possible to observe the actual process of hot melt sealing of electrical components. Customers interested in observing are encouraged to inquire.
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For waterproofing, dustproofing, and insulation of electrical components. The spotlight is on the sealing technology "Hot Melt Molding." At Matsumoto Processing Lab, you can observe the actual sealing process. Please consider it.
"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, involves low-pressure insert molding of thermoplastic adhesives 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 the adoption of this sealing technology. Now, at the Matsumoto Processing Lab, nine hot melt molding machines are installed, and it is possible to observe the process of hot melt sealing electronic components. Customers interested in observing are encouraged to inquire.
