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Old 06-28-2004, 02:40 PM
blackcote blackcote is offline
Amateur Metal Finisher
 
Join Date: Jun 2004
Posts: 99
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Default distilled vs. tap water and anodize time too short

Anyone know what the effects of using tap water are in anodizing
Does it increase needed anodizing time?

Only thing I've found by searching is blotchiness. Which I'd be ecstatic if I could get it that good. My problem is that it seems that the 720 rule is useless for me as my setup seems to want to run twice the amount of time to get a good deep color. I did many experiments to no success. I've wasted a ton of time trying to use current densities and 720 rules. None of it is getting close for me. The only other two variables that I haven't nailed down yet were the acid ratio of electrolyte. and whether I have a good enough connection (resistance)

I've made a new batch of acid to start with tomorrow night. This may be my last attempt before giving up. We've done it before using a battery charger and tap water. We can't remember how long we left the part in the solution. I thought CC would help me get more consistent, which I believe it has but the shade is defintely not dark enough. I've had my customers parts for like 3 weeks and don't even know if I feel up to charging him after taking so long.
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