Waterproof sealing of electrical components: Hot melt molding
Low Pressure Molding, Hot Melt Molding, Waterproof and Dustproof, Encapsulation 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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basic information
●What is Hot Melt Molding? It is a technology that demonstrates excellent sealing performance by directly injecting hot melt adhesive into electronic components. □Advantages of Adoption 1. Reduction in Processing Time Hot melt molding completes one molding cycle in about 10 seconds to several tens of seconds. There is no need for curing time like in potting. 2. Reduction in Number of Parts Hot melt molding eliminates the need for a case. This allows for a reduction in the number of parts and production man-hours. 3. Miniaturization and Weight Reduction Hot melt molding can be shaped with minimal wall thickness along the insert components. This is expected to reduce the amount of resin used, leading to miniaturization and weight reduction. Matsumoto Processing will respond quickly to the selection of suitable hot melts, modeling of molding shapes, analysis, mold production, and prototyping after understanding the reliability required for your products. For customers wishing to introduce hot melt sealing processes in-house, we provide comprehensive support including the production and sale of molding machines and molds, development of molding parameters, process startup assistance, and supply of hot melts. For customers who wish to outsource the hot melt sealing process, we offer contract molding services.
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Applications/Examples of results
【Automotive Interior Components】 - Waterproofing of seat occupancy detection sensor - Waterproofing of micro switch - Waterproofing of seat belt lock detection sensor - Waterproofing of harness assembly - Waterproofing of seat position sensor, etc. 【Other Automotive Components】 - Waterproofing of coil antenna - Waterproofing of camera harness - Waterproofing of ground terminal - EPS angle sensor - Waterproofing of battery current sensor, etc.
Detailed information
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LED module For waterproof protection of LED fixtures. Achieve cost reduction by switching from silicone potting!
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Waterproof protection for printed circuit boards. Achieve significant cost reduction by switching from epoxy potting. Additionally, it is a one-step process that takes only a few seconds, so no work-in-progress is needed!
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For small quantities, hot melt molding is low pressure, which means that the equipment and molds are also small and inexpensive (molds cost around 300,000 to 500,000 yen). If the production cost of resin cases is high for small-scale production, please consider hot melt molding.
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Intermediate harnesses for water-related equipment, etc. Achieve cost reduction through hot melt molding with case-less design, reduced resin usage, and shortened production time!
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Company information
Our company provides comprehensive support for the introduction of hot melt molding methods, from initial technical discussions and appropriate hot melt selection to prototype production and evaluation, optimal process considerations for mass production, proposals for optimal equipment or the design and manufacturing of dedicated machines (automated systems), hot melt supply and line support. For customers for whom equipment installation poses a barrier to adopting this method, we even offer production contracting at our facility, ensuring support from "start to finish." **Benefits of Hot Melt Molding** - Improved production efficiency and cost reduction through alternative methods to potting - Greater design flexibility due to mold forming, enabling miniaturization and lightweighting of components - Use of sustainable raw materials derived from natural fatty acids We have various molding machines and displays of adopted products available at our prototype lab in Fuji City, Shizuoka Prefecture. Please feel free to visit, even just for a tour.