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 Will Mineral Spirits hurt my brass
hpdfish  [Member]
11/7/2010 2:51:56 PM
I was wondering can I use mineral spirits to remove sizing lube without harming my brass
raf  [Site Staff]
11/7/2010 3:23:43 PM
I doubt the use of mineral sprirts will harm your brass, but I cannot say the same for your primer or powder.

A good many things can contaminate/harm powder and primers, possibly even traces of mineral spirits left on the brass. How long this would take depends on the contaminate and the amount present.

I suggest you contact the lube mfr, and ask them the proper method of removing their particular lube. Tumble in clean media after removing the lube, and you should be GTG.

rg1  [Member]
11/7/2010 5:59:58 PM
The mineral spirits won't hurt the brass but could contaminate powder or primers. I use odorless mineral spirits to clean the tar-like sealant that the military uses on some cases to seal the neck. I size and tumble in corn cob media to remove the lube. I wouldn't use mineral spirits to clean loaded rounds. Some people put a capful of mineral spirits in their vibratory tumbler media to clean dirty brass. Usually a clean rag will remove most all the lube.
Snot-Rocket  [Member]
11/8/2010 3:05:28 AM
I keep several clean, dry white T-shirts to remove sizing lubricant and take care of this step when I uniform the flash holes or clean the primer pocket. I launder them frequently and never let them get dirty enough to not come fully clean during normal washing.

I find that this technique leaves just enough of a slight trace of lube to prevent tarnish during storage. For case lube, I'm using Imperial die wax.YMMV
Max-Paul  [Team Member]
11/8/2010 8:10:14 PM
Snot,

what does Imperial die wax and mineral spirits have in common? Imperial die wax will not contaminate primers or powder. Mineral spirits like oil will contaminate both primers and powder. So, unless you do a through job of removing the mineral spirits from the case. there is a good chance that either the primer will be neutralized or a portion of the powder will not burn if any of it. This will not happen with the imperial die wax if you do not get it all cleaned off of the case.

But again, the question was about mineral spirits.
BSOG1  [Team Member]
11/22/2010 11:12:33 PM
imperial is the best.

but why would he have powder or a primer even in a case after decapping / resizing ?
Snot-Rocket  [Member]
11/23/2010 12:12:16 AM
Originally Posted By Max-Paul:
Snot,

what does Imperial die wax and mineral spirits have in common? Imperial die wax will not contaminate primers or powder. Mineral spirits like oil will contaminate both primers and powder. So, unless you do a through job of removing the mineral spirits from the case. there is a good chance that either the primer will be neutralized or a portion of the powder will not burn if any of it. This will not happen with the imperial die wax if you do not get it all cleaned off of the case.

But again, the question was about mineral spirits.


Indeed... My response was made as an attempt to offer a (alternative) solution that has worked well in my first-hand experience. Other lubes IMHO tend to be messy and a PITA to remove later. Imperial lubes well and is also the easiest to remove afterwards.
competitor  [Member]
11/23/2010 2:28:16 AM
I have not tried mineral spirits, but I have been using rubbing alcohol for about 12 years now and never had a problem, it evaporates. It was reccomended to me by a Commercial Ammo producer. I use mostly Imperial wax for sizing.

Ed
PugglePod9000  [Member]
11/23/2010 5:41:07 PM

I use mineral spirits. It works fine and will not hurt the brass.