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I'm kinda late jumping in on this post, but here's my 2¢

I use Nu-Finish with walnut media only, some people use combo of walnut & corn cob media?????
My brass always comes out better than new. ( Which isn't always hard to do )

As far as dust, I use used drier sheets when available (we have not been using them lately ).
Plus a few other things I have tried that work ok. ( working OK means when I take the material or sheet out of the tumbler, it has dust attached to it )
I also have successfully used cut up paper towels, better than that is what I think is called "backing" that is used to back material used in making clothes. My wife sews and uses this stuff and I always grab the scraps and save them for my tumbler.
It comes in a Bolt like clothing material does, or you may be able to find small pieces at Walmart or JoAnns or Clothworld or other material/sewing stores??? Its pretty cheap and works OK. It pretty much looks like drier sheet material..!!!
Sometimes I have seen it under the bottom of cloth covered large living room chairs or even on the bottom of couches/sofa's.

Just try cheap stuff like that and see if it works, if so..GREAT...if not, keep looking


Anything to trap dust particles and then throw them away.

Don2

Ps..I did a test years ago before using Nu-Finish on my brass, I used nu-finish on some throw away 30-06 brass, then hung them in my shop for almost a year while I was rebuilding it "The shop"....After that time, it was still looking fine inside and out and brass was not discolored or any way looking bad. It was just my little test before I committed to using and keep me from worrying about ruined brass.

Need to grab me some of this nu-finish. I've been using Mother's and it's too thick and doesn't dilute well with mineral spirits.

BTW Don, I've been using a Lyman tumbler you recommended me and it's working out great. I've been tumbling away with my walnut (from petsmart). Bringing that grimy pick-up brass back to new condition makes you feel good.

I've gotten a bit elaborate with my brass prep--some would say too elaborate, but it gets me bright shiny brass that looks better than new.

I, like Jeremae, use a two stage process--clean followed by polish.

I start with a harbor freight ultrasonic cleaner. I fill the cleaner with water and a simple citric acid/dish soap concentrate pre-mix (I've been thinking about marketing this stuff--it's simple, non-toxic, and it works). Run the brass in the cleaner for 3 8-minute cycles, stirring the bass between each cycle. This gets it clean inside and out.

I then drain the brass in a strainer (I use my brass sorters!) and off it goes into the tumbler for 30 minutes. The media is 14/20 corncob purchased in 40# bags (for about 30 a bag) with a capful of Nu-Finish and a capful of mineral spirits (or Ed's Red--whichever's on the shelf at the time).

It sounds complicated, but each pass feeds the other, and the brass is ready to come out of the tumbler by the time the next wet batch is ready to go in. Total prep time is about an hour from range-bucket to reloading press. I can do a 5-gallon bucket of 45's in an afternoon while I'm puttering around doing other things too.

Personally, I don't decap the cases before the wash/polish process (for pistol) but if you were so inclined, the results are spectacular. I've not yet had any problems with corroded primer pockets from the wet process as long as I go straight to the tumbler with it. The heat generated by the ultrasonic process causes the liquid to evaporate pretty quickly, and the corncob serves to dry the cases both inside and out, while polishing to a high luster.

I've tried several brands but NuFinish seems to work the best.

slinco wrote:I've tried several brands but NuFinish seems to work the best.

Nu-Finish seems to have been around a very long time...I remember using it on my 67 Ford Fairlane 500 2 door with a 289 and 3 on the tree

But this was about 1970'ish..!!

Hmmm...It was a miracle wax(?) back then...made my car shine like it was new

It seems to work as well for brass as it did for old paint ..!! ( Not the Horse by that name )

Don2