Overview:
Our custom silicone rubber buttons, produced via precision compression molding and finished with a specialized conductive PU coating, deliver exceptional durability, flexibility, and reliable electrical performance. Each button receives an even layer of polyurethane-based conductive material to guarantee consistent contact and tactile responsiveness. As experienced OEM manufacturers and suppliers, we provide end-to-end services—including bespoke button configurations, tailored PU coating formulations, and integrated logo embossing—to suit the rigorous demands of consumer electronics, industrial control panels, and automotive user interfaces.
Features:
- Place of Origin: Xiamen, China
- Brand Name: OEM
- Application: Consumer Electronics, Industrial Controls, Automotive
- Item Name: Conductive PU-Coated Silicone Rubber Keypad Buttons
- Material: Food-Grade Silicone Rubber
- Hardness: 30–75A Shore
- Color: Any Pantone/RAL Color
- Printing: PU Conductive Coating & Custom Laser or Pad Printing
- Sample: Available Upon Request
- Certification: ISO 9001, IATF 16949
- Technology: Silicone Compression Molding with PU Conductive Coating
- MOQ: Flexible, Based on Your Requirements
- Lead Time: 20–30 Days
Surface Coating Options:
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PU Conductive Coating
- A robust polyurethane layer embedded with conductive particulates, delivering uniform electrical conductivity, superior abrasion resistance, and long-term reliability.
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Silver Ink Pad Printing
- Precision-deposited silver-based ink that forms a thin, highly conductive trace for accurate circuit contact and sharp, custom graphic detailing.
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Laser Etching
- High-precision laser engraving that produces permanent, high-contrast logos and key legends without compromising the underlying PU coating’s conductivity.
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Epoxy Protective Coating
- A clear, industrial-grade epoxy encapsulation that seals and protects printed legends or conductive traces, offering enhanced chemical resistance and mechanical durability.
Production Process:
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Design & Tooling Preparation
- Finalize button geometry, logo placement, and material specifications in CAD.
- Manufacture precision tooling (mold cavities, inserts) via CNC machining and EDM, ensuring ±0.01 mm accuracy.
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Silicone Compression Molding
- Preheat high-precision compression presses and load food-grade silicone rubber into mold cavities.
- Apply calibrated pressure and heat to vulcanize silicone into the finished button shape.
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Demolding & Initial Inspection
- Open molds and eject molded parts.
- Perform a quick visual check for flash, sink marks, or incomplete fill.
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Trimming & Secondary CNC Finishing
- Remove any residual flash or sprue with precision trimming dies or CNC trimming stations.
- Verify dimensional accuracy with calipers or optical gauges.
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Surface Activation
- Clean and prepare silicone surfaces using plasma or corona treatment to promote PU adhesion.
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Conductive PU Coating Application
- Dispense a uniform layer of polyurethane-based conductive formulation via robotic spray or dip-coating.
- Control coating thickness (typically 10–50 µm) to balance conductivity and tactile feel.
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Coating Curing
- Transfer coated parts into a controlled-temperature curing oven.
- Cure per PU supplier’s profile (e.g., 120 °C for 30 minutes) to fully crosslink the coating.
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Logo Integration & Graphic Printing
- Apply custom logos and legends using laser etching, pad printing, or UV-cured inks—taking care not to compromise conductivity.
- Inspect print quality and adhesion under magnification.
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Final Quality Assurance
- Conduct electrical continuity tests (measuring resistance across contact pads).
- Check mechanical performance (tactile force, travel distance) and visual appearance (color match, surface finish).
- Document results in batch QC reports.
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Packaging & Delivery Preparation
- Pack buttons in anti-static, protective trays or custom packaging to prevent deformation.
- Label packages with part numbers, lot codes, and handling instructions.
- Coordinate with logistics for timely shipment in accordance with customer requirements.
Our Factory:
Our state-of-the-art production facility is equipped with precision CNC machining centers, mirror-finish and conventional EDM stations, and ultra-fine slow-speed wire-cutting units for tooling fabrication. Our molding division houses 15 rubber compression presses alongside two high-speed LSR injection systems specifically configured for PU coating applications. Quality is assured by a certified QA team using 3D optical projectors, sealing-integrity testers, Shore durometers, and elasticity gauges. Fully accredited to ISO 9001 and IATF 16949, we further streamline production with automated AutoDryers, high-throughput doming stations, and precision die-cutters—guaranteeing efficient, repeatable manufacturing of premium conductive silicone keypads.
