No Tarn PM-3 Silver Antitarnish bath was specifically developed for protection of silver from sulphidation. It is based on aqueous, metal-free solution in which the organic inhibitor is present as a fine dispersion. The passivation layer is applied by immersion and is specifically designed for silver surfaces.
- Protects silver deposits from tarnishing
- No adverse effect on contact resistance, solderability or bondability
- No influence on colour brightness of underlying deposit
- Effective protection of tarnishing for copper, palladium and thin gold layers
- Free from metal ions an halogenated hydrocarbons
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