Membrane switches require customisation according to vehicle models, with production involving engineering design and screen printing processes. Materials must balance sealing properties and weather resistance. Hongmao provides bespoke services for automotive instrument panels and related fields.
The service life of automotive membrane switches is not fixed, as it fundamentally depends on usage frequency, manufacturing processes, and environmental conditions. The industry standard typically ranges between 100,000 and 500,000 press cycles.
The panel layer must possess high transparency, ink adhesion, and crease resistance. Common materials include:
PC (Polycarbonate): Resistant to weak acids and alkalis, relatively low cost, suitable for standard environments.
PET (Polyester): Longer service life, excellent gloss, with frosted finishes (e.g., F150) better suited for outdoor applications.
Waterproof and dustproof: Strong sealing properties effectively resist moisture, dust and harsh environments, ensuring stable circuit operation.
Impact-resistant: Certain models incorporate metal springs (e.g., stainless steel) to deliver consistent tactile feedback and extended service life.
Corrosion-resistant: Suitable for demanding environments such as automotive interiors, withstanding oil contamination, chemical corrosion, and high temperatures (including extreme thermal conditions in new energy vehicles).
High light transmittance: Some products feature anti-glare coatings, maintaining accurate colour reproduction even under intense illumination.
Highly flexible design: It can be crafted into any shape, perfectly conforming to the curves and contours of the interior to achieve seamless integration with components such as steering wheels and door panels, creating a cohesive cabin aesthetic.
Enhanced Technology and Luxury: Integrated with backlighting, LED indicators, and even vibration motors, membrane switches provide clear illumination at night and deliver refined tactile feedback upon actuation, significantly elevating the vehicle's technological sophistication and perceived quality.
Reliable Durability: The automotive interior environment is demanding, subjecting components to extreme temperatures, vibration, and prolonged use. The sealed construction and durable materials of membrane switches fully meet the stringent requirements of automotive-grade specifications.
