High-Quality Liquid Photoimageable Solder Mask LK-ZF600 from China Suppliers and Factory for FPC Boards
Feature
It has very good resistance to heat, ENIG, and has excellent insulation, halogen-free. It complies with the Directive 2002/95/EC of the European Parliament and of the Council of 27 January 2003 on the Restriction of the use of certain Hazardous Substances (RoHS) in electrical and electronic equipment.
Product Specification
| LK-ZF600 Serie Components | LK-ZF600 | CA LK-HD600 |
|---|---|---|
| Mixing Ratio | 75 parts | 25 parts |
| Color | Green, Orange-red | White |
| Mixed Properties | ||
| Viscosity | 170 ± 20 dPa.s | |
Processing Parameters
Should be used in a clean environment with a temperature of 20-25°C and a humidity of 50-60%RH.
Use a yellow light (UV filtering) for lighting; avoid using white electric lights or daylight.
When the product temperature reaches room temperature, open the can, mix with a ratio by weight of 75 parts LK-ZF600 and 25 parts CA LK-HD600, and stir thoroughly.
Pot life after mixing: 24 hours when stored in a dark place at ≤ 25°C (77°F).
- Screen Mesh: 100-130
- Screen Mesh Angle: 45° Bias
- Stand Time: Ten to thirty minutes after printing
- Thickness: About 20μm (after curing). If it is too thick, the drying time will be longer.
Energy Requirements:
- For Green: 600mJ / cm² minimum (under phototool)
- For Orange-red: 500mJ / cm² minimum (under phototool)
The exposure energy depends on the type of substrate and the thickness of the mask. The appropriate exposure amount can be selected according to the size of the undercut.
Stand Time: Ten to thirty minutes after exposure.
- Solution: 1% by wt. Sodium Carbonate
- pH: 10.6 minimum
- Temperature: 29 - 31°C
- Spray Pressure: 0.15 - 0.2MPa
- Dwell Time: 40 - 70 seconds (in developing chamber)
- Water Rinse: Required to remove developer solution & dry (water temperature below 30°C, water pressure: 0.1-0.15MPa, rinsing time: 30-50 seconds)
- Temperature: 150°C in conveyorized oven
- Time at Temperature: 60 minutes
- Avoid direct sunlight and fire sources. For long term storage, please keep the room temperature below 15°C and avoid sunlight. Unused L and K film should be put back into the original packaging bag (L film in black poly bag, K film in blue poly bag) and stored in the packaging box.
- Don’t contact with the following items: Carbonless copying paper; water, oil, solvent and other chemicals; Plasticizers and plastic products which contain plasticizers; Rubber and eraser; Oily handwriting.
- The K film after indicating color should be put into the paper bag. When storing a few K films together, make sure the color surfaces do not touch each other. It is better to separate them with white paper.
- The color film samples will fade to a certain extent over time. It is suggested to scan the image for storage.