Active Member
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[China]
Address: 29th floor room 15 No.5 Commercial building B block ,the 2nd section Wuchang Fu west,No.32 Wenzhi street,Hongshan district,Wuhan city,China
Contact name:
Hubei Nuojin Sen Technology Co.,Ltd |
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Screen printing,black color fast uv lamps curing solder mask
| Items | Technical features | Notes |
| Color | Green , Blue | |
| Fineness | ≤8µm | 0 ~25µm Fineness gauge |
| Viscosity (25℃) | 110±20dPa﹒s | VT-04F |
| Density (25℃) | 1.20 ~1.40 g/ml | |
| Screen mesh | 90 ~120T | |
| Film thickness | 12 ~16µm | |
| Curing energy | 1000 ~1800 mJ/cm2 | The effective value through the polyester film |
| Pencil hardness | ≥4H | Pencil hardness test |
| Adhesion | 100/100 | Laceration experiment |
| Insulation resistance | ≥1.0×108Ω | IPC-SM-840D 3.8.2 |
| Resistance to molten Tin | 260±5℃×10secends×3times OK | IPC-SM-840D 3.7.2 |
| Environment standard | In compliance with RoHS directives | SGS testing |
| Flammability | UL94V-0 | Certified number:UL-E189612 |
| Package | 5.0kg/bucket , 20kg/box | |
| Shelf time | 6 months since the date of manufacture | Store below 25℃ in dark |
Usage:
1. Mixing:
Mixed the mian ink ,stirring for 10-15 mins .
2. Treatment before printing:
1)Wash pcb with HCl or H2SO4 water solvent .
2)Brush the PCB with machine(300-500mesh) .If you do not have ,you
could use brasive paper instead.
3) High press water cleaning ,then fresh water cleaning .
4)80 degrees temperature to dry pcb for few seconds.
3. Screen printing
Screen printing:120T or 250-300 meshes net for printing.
4. Curing
High press uv lamp for curing:
80W/cm*3 lamps ,energy request:1000-1200mJ
You could use the roll line for than and the speed of roll depends
on the curing process and effect . The distance of lamps is about
8-10cm and lifetime of lamps is under 1000hours
Matters needing attention:
This specification in all parameters and results for the company's test data,can only be done for early reference,as a guarantee and basis,pratical application to customers for the field test conditions and test results.
