Carbon Conductive Paste
CAS Number: 1333-86-4
Carbon conductive paste is a cost-effective, screen-printable formulation of carbon black or graphite particles dispersed in a polymer binder, used for printing resistive elements, shielding layers, and electrode contacts in electronic devices. It provides tunable sheet resistance across a wide range and is compatible with flexible and rigid substrates. Commonly used in membrane switches, biosensors, and printed heating elements.
Technical Specifications
| viscosity | 50–300 Pa·s |
| appearance | Black paste |
| carbonContent | 20–50 wt% |
| cureCondition | 100–140°C / 20–30 min |
| sheetResistance | 10–1000 Ω/sq (25 µm film) |
| substrateCompatibility | PET, PEN, FR4, polyimide |
Applications
- Membrane switch contact printing
- Biosensor electrode fabrication
- Printed heating element circuits
- EMI shielding layer printing
- Capacitive sensor electrode printing
Key Features
- Cost-effective alternative to silver paste for resistive applications
- Tunable resistivity through formulation adjustment
- Flexible film for bendable electronics
- Stable resistance after thermal and humidity aging