letter 8072

Seeking technology for silver plating aluminum  

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I need technology for silver coating Aluminum.

Goran
Lavica Komerc - Belgrade, Yugoslavia

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I DIDN'T KNOW CLEARLY WHAT YOU MEAN BY COATING BUT IF YOU MEAN ELECTROPLATING THEN I THINK THIS PROCEDURE WILL HELP

1-CLEAN THE SURFACE OF ALUMINIUM

2-ETCHED IT WITH [SODIUM HYDROXID]

3-IMMERSE IT IN ZINCATING SOLUTION

4-REMOVE ZINCATING BY NITREC ACID

5-ZINCATING AGAIN

6-ELECTROLESS NICKEL

7-ACIDIC COPPER

8-NICKEL

9-SILVER PLATING

RAFAAT ALBENDARY
NATIONAL PLASTIC ELECTROPLATING - CAIRO, EGYPT

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