Overview
Our Custom Epoxy Coated Silicone Rubber Keypad Switch Buttons for Electronic Devices Application combine the soft, durable feel of molded silicone with a hard, wear-resistant epoxy topcoat for permanent legends and superior surface protection. Designed for consumer electronics, industrial controllers, medical devices, and automotive interfaces, these keypads use precision silicone compression molding followed by high-precision marking (laser etch, pad print) and epoxy coating/doming to deliver long-lasting legibility, improved abrasion resistance, and consistent tactile feedback.
Basic Information
| Attribute | Details |
|---|---|
| Place of Origin | Xiamen, China |
| Brand Name | OEM / Custom Branding |
| Application | Consumer electronics, industrial controls, medical devices, automotive panels |
| Material | Silicone rubber (silane-crosslinked or LSR) with epoxy topcoat |
| Hardness | Shore A 20–80 (customizable) |
| Surface Finish | Matte / gloss silicone base + epoxy coating (thin film) |
| Marking Options | Laser etching, pad printing, screen printing, epoxy doming |
| Certifications | ISO 9001, IATF 16949, RoHS, REACH (as required) |
| MOQ | Small orders accepted |
| Sample Lead Time | 5–7 business days |
| Production Lead Time | 15–25 business days (depends on tooling & coating) |
| Packaging | Protective trays / custom export packaging |
Key Benefits
- Durable Epoxy Topcoat — Protects markings from abrasion, solvents, and UV, extending life of legends.
- Preserved Tactile Feel — Epoxy layer engineered (thin, controlled thickness) to retain dome snap and travel.
- High-Definition Markings — Laser etch + epoxy fill or precision pad printing for crisp, long-lasting icons.
- Environmental Robustness — IP-rated sealing options; resistant to oils, cleaners, and repeated actuation.
- Fully Customizable — Color, hardness, dome profile, coating gloss, and electrical/graphical layout tailored to spec.
- Production Scalability — From rapid prototypes to high-volume assembly with automated coating and curing.
Typical Specifications (customizable)
- Dome Travel: 0.3–1.2 mm (per design)
- Actuation Force: 100–600 gf (adjustable via dome geometry & hardness)
- Epoxy Coating Thickness: 20–150 μm (controlled to balance protection with tactile feel)
- Operating Temperature: -40 °C to +85 °C (standard); extended ranges available on request
- IP Rating: Up to IP67 (with integrated sealing and overmolding)
- Lifespan: >1,000,000 actuation cycles (depending on design)
Quality Assurance
We implement multi-stage QC to guarantee performance and consistency:
- Raw material verification and RoHS/REACH compliance testing.
- Dimensional inspection with 3D optical profilers and CMM for dome geometry and tolerance control.
- Tactile force profiling and life-cycle actuation testing with automated actuators.
- Adhesion & abrasion tests for epoxy coatings (crosshatch adhesion, Taber abrasion).
- Environmental tests including humidity, thermal cycling, salt spray (if plated hardware present), and chemical resistance.
All processes follow ISO 9001 and IATF 16949 protocols with batch traceability and documented inspection records.
Factory Capabilities
- Molding: Precision silicone compression molding and LSR injection units for tight tolerances and consistent dome performance.
- Tooling: CNC-machined molds and wire EDM for accurate cavity geometry and repeatable tactile profiles.
- Marking & Coating: Laser etching, pad/screen printing, and automated epoxy coating/doming lines with controlled curing ovens.
- Finishing & Assembly: Vision inspection, die-cutting, adhesive backing application, and panel integration services.
- Testing: Automated tactile test rigs, conductivity meters (for conductive silicone variants), IP ingress test rigs, and environmental chambers.
Why Choose Us?
- Turnkey capability from tooling → molding → marking → epoxy coating → assembly → testing.
- Engineering support for DFM to balance tactile feel vs. coating protection.
- Fast prototyping and scalable production with competitive OEM pricing.
- ISO/IATF certified quality systems and robust process documentation for regulated markets.
