Ronuk Industries

AGLOTARNIL SILVER DIP

Aglotarnil Silver Dip is a neutral non-chromate solution for the immersion Passivation of silver and silver plated articles. The solution is easy to use, has a long life and is economical to operate. Where components are to be subsequently lacquered, the two part Electrotarnil Silver Passivation Process is advised. When tested by the Thioacetamide Test in ISO 4538, articles with Aglotarnil Silver Dip did not tarnish for 24 hours, compared with ordinary silver, which tarnished in just 5 hours.

Solution Composition:

Aglotarnil Silver Dip SF22963 : 334 ml
Water : 1 litre

The required quantity of water should be heated to 50?C and the appropriate volume of Aglotarnil Silver Dip should then be added. The solution should be allowed to cool before use.

Equipment

The dip should be contained in a molded polythene or polypropylene tank or if the volume if large, a GRP / polypropylene or Ilex lined mild steel tank.

Operating Conditions

The solution is used at room temperature. The immersion time in the silver dip should be between 5 and 10 minutes. The longer time gives the greatest degree of protection.

Operating Procedure

a) After silver plating, pass through drag-out tank to enable silver to be recovered.
b) Rinse plated components thoroughly.
c) Immerse in the Aglotarnil Silver Dip for 5 to 10 minutes.
d) Rinse in cold running water.
e) Rinse in cold running water.
f) Dry in warm air below 50?C.

After immersion in the silver dip, the surface of the silver should be completely water shedding.

Maintenance:

The solution volume will fall during use due to drag-out. Allow the level to fall to a predetermined point in the tank and then top up with water. When with continued use, the level falls to the same point again, top up with Aglotarnil. If this alternate water and Aglotarnil topping up procedure is followed, the solution will remain in balance.