LED solder masking resistant white ink

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1，character: ① biocomponent, screen printing ② it can keep for a long time, anti yellowing, high refractive index ③ well gold plating resistant, welding resistant, 2,product specification: Percentage: host ink: hardening agent=3:1 Color: white Viscosity: 250ps±20 Pas（25℃） Warranty(After stiring): 24 hours(yellow light room, below 25℃) Exposure power: 400-600mJ／cm² Ink thickness: 20-25 um Warranty: 9 month(darm room, below 25℃) 3, Operation data: ① Pre-treatment: remove the oil, wax, dirty things,etc. ②Pringting: screen printing ③Stewing: 10-20min Hot wind recycling baker Front: 80-85℃／10-15min Back: 80-85℃／15-20min ④Cool down before exposure ⑤Develop solvant: 0.8-1.2﹪Na2CO3，30-32℃，pressure：2-2.5kg／cm2 　　 time：80-120sec ⑥Hot wind recycling: baker Non-taphole: 150℃／60-70min Verse1: 80-90℃／30min Verse2: 110-120℃／30min Post baking taphole: 150℃-160℃／60-70min 4, Announcement: Our company’s staff will go there to adjust the data according to the real situation. Please confirm the real baking temperature when doing pre-baking; when doing post baking, the temperature should be 150-160℃, over 60min. If unecessary, we do not suggest to go through the UV process and post baking process. If the thickness of frame is thinner than 20mil, please reduce the time of pre-baking. 　　　In case of the ink can not be developed completely, we suggest to do the exposure and develop job 4 hours later after printing, meanwhile, pay more attention to the air conditional humidity.

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Vitayon Chemical Industry Co.,Ltd.(Shenzhen)

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