Silicone Rubber Material

Modern society expects technological innovation and product development that will enable us to live longer, healthier, better lives. Silicones are a fundamental building block that helps make this possible. Silicone rubber is a synthetic material which has the structure shown in this image: The polymeric molecular structure of silicone rubbers has a main chain formed…

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Custom Membrane Switches Tolerance

The custom membrane switches’ shape and size of all rubber switches can be designed so that almost any actuation force and tactile feel can be realized. Most applications require positive tactile feel with relatively long life. An actuation force of approximately 125 – 150 grams is typically recommended with an accompanying snap ratio of approximately…

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Keypad Terminology A-D

Rubber Switch Actuation Force: The force required to collapse the membrane of a rubber switch. Rubber Keypad Air Channel: Air paths on the bottom of rubber keypads and switches that allow for air passage (venting) when the switch is actuated. Switches must be vented on at least two sides. Silicone Rubber Keypad Alignment Hole: Through…

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Custom Molded Rubber

Silicone Dynamics, Inc. located in Bend, Oregon USA is one of the leading manufacturers of custom molded rubber keypads and parts. Our competitive advantage allows us to produce low-cost prototype runs of your custom molded rubber keypads. Silicone Dynamics is able to handle each stage of the process, from prototype all the way up to…

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Silicone Rubber Keypad

Silicone Dynamics, Inc located in Bend, Oregon USA a leading manufacturer of Custom Molded Rubber Keypads has announced the availability of their free engineering sample Silicone Rubber Keypad. Our Free Silicone Rubber Keypad is a great resource for any engineer designing custom molded rubber keypads.  Our Silicone Rubber Keypad shows various features available for custom molded rubber keypads.   Partial…

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Silicone Rubber Injection Molding

Rubber injection molding is the process in which precision silicone rubber parts are created by injecting the liquid rubber into a heated mold. The liquid silicone takes the shape of the mold, is cooled, and then removed from the mold. Rubber injection molding can be broken down into two general steps: Step 1: The liquid…

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Carbon Contact Ink

Silicone Rubber Keypads are commonly designed to include a contact point on the underside that will activate a circuit on a PCB (Printed Circuit Board).  Below is a picture of a PCB with a gold contact meant to interface with a contact point on a silicone rubber keypad.   The most common contact point used…

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