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Kuangshun PCB Printed Circuits Board Solder Mask Ink
KSM-S6189 serials is a serial of two-component ,screen printing , high precision , lye-development solder mask ink. It has more outstanding performance of thermal shock, resistance to chemicals and solvent , tamponade effect and other physical and chemical properties.
Note:Our company produces PCB solder ink ,making ink, etching and plating resist ink and other series . please  directly contact the quotation if you need!

Brand name:  KUANGSHUN
Model: KSM-S6189R01
- high temperature resistance
- excellent chemical resistance 
- good screen printing adhesion
- universally accepted by users
- wide processing window
- UL certifacted
- RoSH compliant
- heat curing

Color  :   Red
Fineness : ≤8μm 0~25μm Fineness gauge
Mixing ratio : Base /Hardener=3:1 Weight ratio
Solid content after mixing : 75±3%
after mixing : (25ºC) 200±30dPa?s VT-04F
Density after mixing : (25ºC) 1.20~1.30g/ml
Pot life after mixing : 24 hours Store below 25ºC in the dark
Pre- baking limit : 75ºC,60min
Exposure energy  : 400~600mJ/cm2 The effective value through the polyester film
Package Base : 750g;Hardener:250g Conventional Packaging
Shelf time : 6 months since the date of manufacture Store below 25ºC in the dark

Properties of the film (after post cured)
Pencil hardness≥6HPencil harder,JIS K5400 8.4
Adhesion100/100Laceration experiment,JIS K5400 8.5
Solvent resistanceGood25ºC, C2H5OH, 20min
Acid resistanceGood25ºC 10vol%H2SO4 , 20min
Alkali resistanceGood25ºC 10wt%NaOH , 20min
Boiling water resistanceGood100ºC, 30min
Insulation resistance≥1.0×1012ΩIPC-SM-840C 3.8.2
CTI≥600IEC 60112:2003
Resistance to molten solder288ºC×10 seconds×3 times
OKJIS C6481 5.5
Resistance to flameUL94 V-0Certified number:UL-E189612
Chemical-plating nickel/aurumOKNi:5μm; Au:0.05μm

1.The base and hardener should be mixed according to the ratio and stirred thoroughly before using.
2.We will offer you special diluent or DPM 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.
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