Hubei Nuojin Sen Technology Co.,Ltd
Self-improvement, practical effectiveness
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Red color solder resist mask ,liquid photoimageable curing for industry
| Items | Technical features | Notes |
| Color | White , Black | |
| Fineness | ≤8µm | 0 ~25µm Fineness gauge |
| Mixing ratio | Base/Hardener=23/2 | Weight ratio |
| Viscosity after mixing (25℃) | 250~450 dPa﹒s | VT-04F |
| Density after mixing (25℃) | 1.20 ~1.40 g/ml | |
| Screen mesh | 90 ~120T | |
| Film thickness | 12 ~16µm | After curing |
| Curing energy | 150℃ , 30 ~60min | Hot air circulation oven |
| Pot time after mixing | 24 hours | Store below 25℃ |
| Pencil hardness | ≥6H | Pencil hardness test |
| Adhesion | 100/100 | Laceration experiment |
| Insulation resistance | ≥1.0×108Ω | IPC-SM-840D 3.8.2 |
| Resistance to molten Tin |
288℃×10secends×3times OK |
IPC-SM-840D 3.7.3 |
| Environment standard | In compliance with RoHS directives | SGS testing |
| Package | Base:920 g ; Hardener:80 g | According to customer requirements |
| Base:4.6 kg; Hardener:0.4 kg | ||
| Shelf time | 6 months since the date of manufacture | Store below 25℃ in dark |
Working procedure
1. Mixing
Mixing a small amount main agent with hardener and stirring thoroughly,then mixing the mixture above with the remanent main agent,add appropriate diluent and stirring 5-10 minutes. The viscosity of ink is adjusted to 120 PS if printed by hand. And it is adjusted to 180 PS if printed by machine.It is adjusted to 200 PS if it is aluminum tamponade .The viscosity of ink mixed above is measured at 25 degrees. Please use the special diluent of our company if the viscosity of ink needs to adjust.
10-15 minutes after stiring uniformly
1) Single side printing separately
First side:72-76 degrees,15-18 min
Second side:72-76 degrees,30-35 min
300-500mJ/cm2,Black ink:600-750mJ/cm2,exposure step:10-12 steps
Developing solution:0.8-1.2wt% Na2CO3 or K2CO3 aqueous solution
Developing solution temperature:28-32 degrees
Spray pressure:1.5-2.5kg/cm2
Developing time:40-90 seconds
Spray Tin board:150 degrees*(60-120min)
Chemical-plating Aurum board:150 degrees*(50-60min)
Thick copper plate,boards printed with black ink should be post-black in subsection:75 degrees*(60-120min)+100 degrees*30 min+150 degrees*(60-90min)
6 months since the date of manufacture,store below 25 degree in dark
1) Mixing the ink fully before using
2) We will offer you special diluent or PMA if the ink need dilute
3) The values above are based on experiments in our lab.Experiments need to be carried out in order to get proper using condition.
Our company:
Company passed the ISO9001 quality standard certification and ISO 14000 environment system certification, which is the national high and new technology enterprise. Company has achieved many honors, including: the Chinese photographic society of professional committee of the radiation curing, deputy director of the unit,the ninth national committee, deputy director of the printed circuit branch of unit, the national standardization technical committee, deputy director of the unit printed circuit boards, printed circuit industry in China in the second session of "nation" brand enterprise, Hubei in 2015 advanced units of ecological construction and environmental protection, etc.Companies always adhere to the science and technology as the first productivity. Enterprise technology center in Wuhan city, the company has built in Wuhan city, and form a complete set of PCB ink research and development of engineering technology research center, two platform, and lead to make the printed circuit with marking ink and the printed circuit using resistance solder "two important industry standards. The company's flagship product, solder resist ink (solder mask) series of products have been American UL safety certification.