Anybody use dry additives to their vibratory tumblers' corn cob media?

[garypl50]

I put a little squirt of LUCAS Polish in the media and they come out shining...

 

[thevalueman]

guess I've been buying the wrong media....didn't realize I had options...

 

[EMC45]

I use mainly corn cob with a little Lyman TuffNut walnut shells with NuFinish. Makes my brass nice and shiny.

 

[Red Rex]

I use mainly corn cob with a little Lyman TuffNut walnut shells with NuFinish. Makes my brass nice and shiny.

Add a cap full of mineral spirits as well

 

[Leviathan]

I read that it's too sharp so I'll stick with Nu Finish car polish as an additive.

^^^^This is my go-to. Refresh every load or two and it'll do the job.

 

[EMC45]

Add a cap full of mineral spirits as well

I’ve done the mineral spirits thing and it gave my brass a slight “grey wash”

 

[ahunter]

Harbor freight has a new media look like plastic when I try it will post my results

 

[thebassdude]

I wonder if corn media or anything smaller that can pass through the flash hole effect the primer going off? I've never tumbled primed brass but I always get media stuck in the flash holes.

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I came here to say this. I would not tumble primed brass.

 

[thebassdude]

I am about to take delivery on a large quantity of brass that will need a little tumbling before I sell it. I cannot wet tumble this brass as it is primed and ready to load, just a little tarnished from age and storage.

I'm thinking of trying aluminum oxide as an additive, similar to how a rock tumbler might. Would you use a different additive? 80 grit or finer? I don't want to have multiple steps in processing this brass so one tumble and bag by count for sale is my objective.

Thanks in advance.

I would not tumble primers. No, I would not do that.

 

[Granite3]

I have never tumbled primed brass either... Learn something new every day....