Antitarnish Protec 100 for silver

Product code: M13.11.002

Passivation process – Protec 100 is a passivation treatment for non-chromic silver, copper and its alloys. Used for electrical contacts, the electrical resistance, weldability and remain virtually unchanged. The special treatments have excellent strength characteristics of the atmosphere of hydrogen sulfide and not normally darkens after 30 minutes of immersion in an aqueous solution of ammonium sulfide to 2%.