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Umicore Sealing 691: Protecting connectors, smart-cards and leadframes optimally

Metal Deposition Solutions

Umicore Sealing 691: New safeguard electrolyte for technical precious metal surfaces

Umicore (Schwaebisch Gmuend, Germany) has just released its new product Umicore Sealing 691. The electrolyte produces highly protective final coatings. Umicore Sealing 691 is designed specifically for technical products. It preserves prolonged functionality, for example, of the precious metal surfaces of electronic components like connectors, smart-cards or LED leadframes. The electrical properties are unchanged. Solderability, bondability and contact resistance are maintained well. The product reduces the coefficient of friction and improves the sliding properties of the treated areas. In addition, it prevents tarnishing and discoloration and has no influence on colour or brightness of the underlayer coatings. In the K2S test silver surfaces coated with Umicore Sealing 691 achieved outstanding performance. The product is suitable for very short treatment times in reel-to-reel plating, as well as rack and barrel plating systems. The water-based process is applied by dipping or by means of current. Umicore Sealing 691 contains no chromates or substances like CFCs, CHCs and HCs.

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