Polymer Overcoat Paste for Thick Film Circuit Protection
View our Polymer Overcoats products...
Dycotec Materials offer a range of epoxy overcoats that can be overprinted on Dycotec’s thick film pastes. These materials are cured at a temperature of 150°C and offer excellent protection.
| Name | Description | Applications | Key Features | Deposition Method | Substrates | Processing Temperature (°C) | Datasheet | hf:tax:pa_applications | hf:tax:pa_deposition-method | hf:tax:pa_substrate |
|---|---|---|---|---|---|---|---|---|---|---|
| DM-OC-6050S | Blue thermoset polymer overcoat for screen printing protective layers, solder dams, and marking over thick film resistor and conductor circuits. The blue colour provides visual contrast for inspection and marking, and the paste is solderable for downstream assembly. Prints on ceramic, stainless steel, and PCB; cures at 150–250 °C. Other colours available on request. | Heaters, PCB | Blue, Solderable | Screen | Ceramic, PCB, Steel | 150 - 250 |  | heaters pcb | screen | ceramic pcb steel |
| DM-OC-6060S | Semi-translucent thermoset epoxy overcoat for screen printing protective layers over thick film resistor and conductor circuits. The semi-translucent finish is formulated for laser marking, allowing permanent part identification through the coating, and the paste is solderable for assembly. Prints on ceramic, stainless steel, aluminium, and PCB; cures at 150 °C. | PCB | Semi-translucent for use with laser marking, Solderable | Screen | Ceramic, PCB | 150 | | pcb | screen | ceramic pcb |
| DM-OC-6051S | White thermoset polymer overcoat for screen printing protective layers, solder dams, and marking over thick film resistor and conductor circuits. The white colour gives high-contrast legend and marking legibility, and the paste is solderable for downstream assembly. Prints on ceramic, FR4, stainless steel, and PCB; cures at 150–250 °C
| Heaters, PCB | Solderable, White | Screen | Ceramic, FR4, PCB, Steel | 150 - 250 | | heaters pcb | screen | ceramic fr4 pcb steel |
These thermoset products offer good solvent resistance and our compatible with soldering processes.
We work closely with our customers to ensure swift adoption of these materials including site visits to run print trials, analysis of printed products at our extensive technology centre in the UK to ensure excellent reliability and rapid supply of materials (typically shipping within 5 - 10 days). If needed, we can rapidly tailor formulations for specific customer requirements.
Benefits of our polymer overcoat systems:
- Excellent printability, enabling good edge definition for circuits needing high resolution dams between solder pads
- Wide tolerance on thermal processing temperatures (150-250°C)
- Good solvent resistance
- Single part system
- Compatible with SAC solderpaste types
