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You probably haven't a clue at what current density the work was done at, I couldn't even guess, even if you provided current and voltage measurements. I'll bet however that its lower than you think it is. Use the 720 Rule.
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yeah, youll have to elaborate. Pretty sure the 720 rule told me 38-42 minutes for a 6-7mil layer(dont have my notebook in front of me at this time). Thats what I have been going by. Maybe your right about the 2011 actually being over ano'd. Usually when that happens for me I get the chalky appearance. This looks perfectly fine. Maybe I should elaborate on the 6061.....when dying, it pretty much didnt get any more depth after 10 minutes. Truthfully, im getting scared. I keep putting time and money into this.........now to find out that even the batches that look really good may actually be over ano'd. It seems near impossible to get everything right, but I guess i'll keep trying. Im half tempted to go back to the "let r rip" method, as it seems to have given the most consistant results.
As far as the dye mixing, ive never had a problem as far as anything on my end. In speaking with the manufacturer of the dyes, I learned that pretty much no dye will be at the proper PH after mixing. If your worried about the PH, youll most likely have to adjust it every time you use the dye. In most cases it doesnt matter except for some select colors that can be a pain.
with the white dots, the parts were never blasted. Most likely the agitation, ill have to get a circulation pump to try out.
with the black dots.....im guessing your right there. Its just semi-strange that it only happens with select batches.