Electronic Paste for Membrane Switches / Keypads, Home Appliance Control Panels
Screen Printing Pastes for Reliable Membrane Switches, Keyboards & Control Panels
Membrane switches and flexible keypads are widely adopted user interfaces for home appliances, medical devices and industrial control panels. Screen-printable electronic pastes form conductive tracks, contact pads and insulating layers on flexible PET substrates, delivering stable switching performance under millions of touch cycles. Our paste system is engineered for high printing resolution, excellent flex resistance and anti-migration properties for long-lifetime human-machine interfaces.
Key Applications
- 1
Membrane switches
- 2Full-size & compact membrane keypads
- 3Home appliance control panels
- 4
Flexible film user interfaces
Material Solutions
- Silver Conductive Paste: High conductivity circuit traces on PET film
- Graphite Carbon Paste: Durable cross-over contacts, contact pads and anti-oxidation coating
- Dielectric Insulation Ink: Cross-layer insulation, dielectric barrier and silver migration prevention
| Model | Description | Substrate | Drying & Firing Condition | Conductivity |
|---|---|---|---|---|
| SPL-1201 | Silver Paste | PET | 130℃/30min | <8 mΩ/sq/mil |
| SPL-1202 | Silver Paste | PET | 130℃/30min | <10 mΩ/sq/mil |
| SPL-1203 | Silver Paste | PET | 130℃/30min | <15 mΩ/sq/mil |
| SPE-L100 | Silver Paste | PET/PI/ITO | 120℃&30min /150℃&5min | ≤35 mΩ/sq/mil |
| SPE-L101 | Silver Paste | PET/PI/ITO | 120℃&5min / 150℃&5min | ≤30 mΩ/sq/mil |
| SPE-L502 | Silver Paste | PET/PI/ITO | 120℃&5min / 150℃&5min | ≤15 mΩ/sq/mil |
| SPE-L106 | Silver Paste | PET/PI/ITO | 120℃&45min / 150℃&10min | ≤10 mΩ/sq/mil |
| SCPE-L104 | Silver Coated Copper Paste, Halogen-free, PCB/Acetone resistant | PET/PI/ITO | 200℃/15min | ≤30 mΩ/sq/mil |
| SPE-L503 | Silver Paste, Halogen-free | PET/PI/ITO | 120℃&20min / 150℃&5min | ≤15 mΩ/sq/mil |
| SPE-L108 | Silver Paste, Halogen-free | PET/PI/ITO | 150℃&30min | ≤10mΩ/sq/mil |
| SCPE-L109 | Silver Coated Copper Paste, Halogen-free | PET/PI/ITO | 150℃&30min | ≤35mΩ/sq/mil |
| SPY-1510 | Silver Paste | PET/PI/PC/PMMA | 90℃/20min | <10mΩ/sq/mil |
| CPM-2001 | Graphite Carbon Paste | PET | 130℃/5~15 min | ≤20Ω/sq/mil |
| CPM-2002 | Graphite Carbon Paste | PET | 120℃/30 min | ≤8Ω/sq/mil |
| DPU6501 | UV Curing Dielectric Paste | PET, paper fabric, plastic film | 650mJ/cm2 | ＞800V/mil |
| DPU6502 | UV Curing Dielectric Paste | PET, paper fabric, plastic film | 650mJ/cm2 | ＞800V/mil |
| DPU6503 | UV Curing Dielectric Paste | PET, paper fabric, plastic film | 650mJ/cm2 | ＞800V/mil |
Core Advantages
Related FAQ’s
A: Yes. The paste rheology is optimized for fine trace printing to support high-resolution membrane circuit design.
A: Our silver paste, carbon paste and dielectric ink are mainly formulated for PET flexible films, which is the most common substrate for membrane keypads and control panels.
A: With proper printing and curing parameters, the circuit can survive more than 100,000 bending cycles without cracking or open circuit.
A: Yes. The dielectric ink is specially engineered to suppress silver migration when voltage bias and moisture exist, critical for long-term switch reliability.
