Re: why flat finish
archi,
Caswell offers two sealers for anodize. The standard nickle acetate is used at boil. The sealer LT is a reduced temp sealer that is not recommended for use with all colors of dye.
A part of 148.5" SA at a 6 ASF CD has a amperage setting of 6.19A. Run 120 minutes for a 1 mil coating with a projected peak voltage of 15V. The numbers jive for the run. The description given sounds like typical dissolution.
I didn't see anything on tank temp, agitation and acid concentration all of which can contribute highly to dissolution. The material grade can have a slight effect on it but is usually only a minor factor.
fragglerock,
Have you tried anything else or come to any conclusions?
SS
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