In-Mold Technology

Master Molded Products is excited to announce the combination of a durable membrane switch with an integrally-injection-molded thermoplastic case.

The In-Molded Switch™ is new technology that Master Molded Products Corporation has developed and patented, where a membrane switch, including the graphic layer, is molded directly into an injection-molded panel, case, or frame. This panel/case concept is specifically designed for each customer application and will often replace other components of the assembly.

Master Molded Products Corporation has been awarded Patent #5,574,623 for this Molded Switch technology.

No Gaps No Seams
The In-Molded Switch is completely encased in an injection molded enclosure made of either ABS, Rynite®, Ryton®, Lexan® or other thermoplastic materials. Because there are no gaps or seams in the construction, contaminants cannot collect and the switch surface and enclosure can be wiped clean. This can be especially important in the appliance, medical and automotive industries.

Other switch assemblies using a bezel or an adhesive backed membrane switch mounted on a backer have potential contamination problems because of seams and cracks along edges. The "wipe-clean" feature of the In-Molded switch is ideal for medical applications, cosmetic applications requiring continual cleaning or other environments where the switch assembly comes in regular contact with harsh chemicals.

Manufacturability
The In-Molded Switch has many advantages in manufacturing. Often, the injection molded casing will replace a separate plastic enclosure or metal backer. With components mounted on the back of the membrane switch, a pc board and/or LED may also be combined with the assembly.

Having only one supplier coordinate the construction of this one-piece unit, from start to finish, eliminates the complicated scheduling problems associated with using multiple vendors.

For applications with a rough environment, this switch assembly has it all.

  • A tough, injection-molded casing with no seams.

  • Termination tail exits through the back side.

  • All the features of a membrane switch including tactile domes, deadfront windows, display windows, custom designs and colors.

  • Plastic injection-molded case combined with TripleSeal® and HeatSeal makes the assembly very resistant to contamination, moisture and dirt.

  • Injection-molded case custom designed to fit your assembly requirements.

In-Molded Switch Potential Industries/Applications

  • Automotive Industry

  • Appliance Industry

  • Exercise Equipment

  • Medical Devices

  • Construction Industry

  • Harsh Chemical Environments

  • Lawn and Garden Controls

Other Switch Features

  • Deadfront displays

  • Tactile circuit domes or embossed domes

  • Custom graphic panel with custom colors

  • A variety of connectors or termination options

  • A variety of molded colors surrounding the switch

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