Non-cyanide substitution type electroless silver plating solution Dine Silver EL-3S
Non-cyanide substitution type electroless silver plating solution
Traditionally, cyanide complex-based plating solutions have been used for replacement-type electroless plating of silver (Ag), but there have been many issues regarding the working environment and wastewater treatment costs. The Dain Silver EL-3S process is a replacement-type electroless Ag plating solution that contains no cyanide at all and has performance equivalent to that of cyanide baths. It also has a long liquid life and can be applied not only to copper materials but also to electroless Ni-P plated materials. It can be used as an alternative plating for electroless Ni-P/electroless Au plating, which is a coating for soldering printed circuit boards, and by directly plating Ag onto copper circuits using the EL-3S process, it can reduce plating costs. Furthermore, it demonstrates superior reliability in solderability compared to heat-resistant preflux.
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basic information
**Features** - Contains no cyanide compounds and is non-toxic. - Wastewater treatment is easier, reducing costs and achieving a safe working environment. - No external power supply is needed; simply immersing in the plating solution forms an Ag plating film. - Excellent liquid stability, resulting in a longer liquid life. It can be reused repeatedly by replenishing the reduced Ag ions. - The physical properties, such as solderability and adhesion of the plating film, are good. - Ideal for surface treatment of printed circuit boards, achieving cost reductions compared to electroless Ni-P/electroless Au plating. It also offers better solderability reliability than heat-resistant preflux, especially after high-temperature thermal history in lead-free soldering. - Being acidic, it does not have corrosive effects on resist films. - Post-treatment with the silver discoloration preventive Nu-Dyne Silver significantly prevents discoloration caused by sulfur gas and sulfide solutions, which are characteristic of silver plating. For other functions and details, please contact us.
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Applications/Examples of results
【Applications】 〇 Solderability coating for printed circuit boards (alternative to electroless Ni-P/electroless Au plating and heat-resistant preflux) 〇 Ag plating on materials coated with resist film that is eroded by alkali ● For other functions and details, please contact us.
Company information
"Things that no one has done yet" and "There are surely people who will be happy if it exists"… The Yamato Kasei Group develops its unique chemical business in niche markets that major manufacturers do not tackle, under the spirit of 'San-so.' The value of the Yamato Kasei Group lies in launching new products into the world through original technology development that does not imitate others. With this sentiment in mind, we adopted "We are Chemical Innovators" as our corporate slogan. To put this slogan into practice, we will continuously challenge ourselves with new, interesting, and unprecedented endeavors.
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