Product Details:
Payment & Shipping Terms:
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Color: | White/black/red/yellow/blue/blue-white/creamy-white/green/purple | Fintness: | ≤8µm |
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Mixing Ratio: | Base/Hardener=23/2 | Viscosity After Mixing (25℃): | 250±50 DPa﹒s |
Density After Mixing (25℃): | 1.20 ~1.40 G/ml | Screen Mesh: | 36 ~51T |
Film Thickness: | 18 ~22µm | Curing Energy: | 150℃ , 30 ~60min |
Pot Time After Mixing: | 24 Hours | Pencil Hardness: | ≥6H |
Adhesion: | 100/100 | Resistance To Molten Tin: | 288℃×10secends×3times OK |
Environment Standard: | In Compliance With RoHS Directives | Package: | Base:4.6 Kg; Hardener:0.4 Kg:Base:920 G ; Hardener:80 G |
Shelf Time: | 6 Months Since The Date Of Manufacture | ||
High Light: | uv solder mask,uv curable pcb ink |
WHITE/BLACK/GREEN/BLUE/PURPLE/YELLOW COLOR THERMAL CURABLE 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 |
It is two component liquid thermal curable solder mask, which has such performance as good printing adaptability and fast curing rate. The cured film can provide good adhesion,heat and chemical.
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+/-20PS if printed by hand
180+/-20PS if printed by machine
200+/-20PS if it is alumium tamponade.
The viscosity of ink mixed above is measured at 25C.Please use the special diluent of our company if the viscosity of ink needs to adjust.
2. Remain time
10-15 minutes after stirring uniformly
3. Screen mesh
Ordinary boards:43T;Chemical-plating Aurum or Tin boards:36T
4. Pre-baking
1)Single side printing separately
First side:72-76C,15-18minutes
Second side:72-76C,30-35minutes
2)Double sides printing simultaneously:72-76C,40-60minutes
5. Exposure
300-500mJ/cm2,Black ink:600-750mJ/cm2(the effective value through the polyester film),exposure step:10-12 step(standard in the remained film)
6. Developing
Developing solution:0.8-1.2wt%Na2CO3 or K2CO3 aqueous solution
Developing solution temperature:28-32C
Spray pressure:1.5-2.5kg/cm2
Developing time:40-90 seconds
7. Post cure
Spray tin board:150C*(60-120)min
Chemical-plating Aurum board:150*(50-60)min
Thick copper plate,boards printed with black ink shoule be post-baked in subsection:75C+(60-120)min*30min+150C*(60-90)min
Attention :
Contact Person: Robbert