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Old 08-14-2010, 08:07 PM
hey_poolboy hey_poolboy is offline
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Phosphoric acid in brass cleaning?




A while ago I read a post regarding cleaning brass with Bar Keeper's Friend. I have been trying it out for a while. While it does a great job at cleaning it doesn't keep them bright. (Not that I'm enamored with shiny brass, but it sure makes finding it on the ground easier.)
So, tonight there were about 700 pieces that need cleaning. I had a little Phosphoric acid hanging around from a home park brew and thought I would do a little experimenting. After cleaning them with BKF I rinsed then put them back in the bucket. Covered them in water and added about 1/4 cup of Phos. acid. Seems to have really helped. I made sure to rinse them a couple of times extra after doing the acid thing.

I'll let you know for sure if it helped or if there are any ill effects after they dry all of the way.

Yes, I'm most likely crazy, but hey you gotta try something new once in a while.
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Old 08-14-2010, 09:44 PM
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RdB RdB is offline
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I would have some concern of the effect of the acid on the brass. Embrittled brass can make you have a bad day at the range!


Have you ever just considered getting a vibrating tumbler and some treated corncob media?
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Old 08-14-2010, 10:09 PM
hey_poolboy hey_poolboy is offline
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Well, we will see. I may load a few up tomorrow and shoot them to see what happens. I did a little checking and it doesn't appear that it will do any harm, at least at the dilution rate I used. (about 75:1) Normal dilution rate was listed as 3:1 and that was for only cleaning metals for paint prep.

I guess only time will tell. BTW it seems it only helped marginally anyway.
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