Hangzhou Bright Rubber Plastic Product Co., Ltd. is one of the leading manufacturers and suppliers of silicone rubber button pad in China. If you're going to buy silicone rubber button pad made in China, welcome to get more information from our factory. We also accept customized orders.
Molding Process
This silicone keypad is produced through a precision compression molding process, where raw silicone rubber is placed into a heated steel mold and cured under pressure. This process allows for the creation of complex geometries, including thin webs, raised buttons, and undercuts, all in a single piece. The mold is precisely machined to ensure consistent button height and travel distance. Custom tooling is created based on your 3D CAD data, and the molding process is strictly controlled to achieve the required hardness and tactile feel for each button.
Backlighting & Light Transmission
Silicone keypads can be designed with backlighting features to improve visibility in low-light conditions. This is achieved by using translucent silicone for the button body and applying an opaque coating to the surface, with the legends laser-etched to allow light to pass through. Alternatively, a light guide film or individual LEDs can be integrated into the keypad assembly. The silicone material diffuses the light evenly, creating a soft, uniform glow that makes the buttons easy to read without causing glare or eye strain.
Protection Rating & Sealing
Silicone rubber keypads can be designed to meet specific ingress protection (IP) ratings, such as IP54, IP65, or even IP67. By incorporating a continuous sealing lip or gasket around the perimeter of the keypad, it forms a tight barrier against dust, water, and other contaminants. The silicone material itself is inherently waterproof and can be molded with a smooth surface to prevent liquid accumulation. This makes the keypad suitable for outdoor equipment, medical devices, and industrial control panels exposed to harsh environments.
Printing & Legends
The legends and symbols on the keypad are created using either laser etching or silk-screen printing. Laser etching provides a permanent, wear-resistant marking by removing a thin layer of silicone to reveal a contrasting color underneath. Silk-screen printing offers a wider range of colors and finer detail. Both methods can produce multi-colored graphics, icons, and text. A protective coating can be applied over the printed surface to resist abrasion, chemicals, and UV fading, ensuring the legends remain legible throughout the product's life.
User Experience & Feedback
The keypad is designed with the end-user in mind, focusing on tactile feedback, actuation force, and travel distance. The snap ratio and tactile feel can be tuned by adjusting the geometry of the button and the silicone hardness, giving the user a clear, positive confirmation when a button is pressed. The surface finish can be textured to provide grip, or smooth for a premium feel. The button layout can be ergonomically designed to minimize finger travel and reduce fatigue during prolonged use.
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