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Instead of using Ferric Chloride solution check
this out homemade solution
Tinnit TM will plate a copper clad board with a bright tin plate approximately .0004'' thick. Enhances
solder-ability. Supplied as
two packets of dry concentrate, just add water to make one pint of solution that will plate up to 600 sq. inches of copper. After being mixed, solution has approximately a
2 month life.
Tinnit
Tin Plate
Tinnit
from All Electronics
I recommend not mixing
the the powders, one is a primer and the other is the tin. Scrub the
board with water, then scrub with a little primer powder and then scrub in the tin separately.
This will give a nice Tin finish that will last years. No shelf life to
worry about.
How
to Plate
Drill Sizes:
#22 - 4mm - .157" #52 - 1.6mm - .0635"
#56 - 1.2mm - .045" #65 - .9mm - .0354"
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