Ultrasonic Cleaning Fired Brass

[TattooedGun]

Last night I had my first foray into this field. After having used wire wool to start, then a Lyman Tumbler I have moved on to Ultrasonic Cleaning for my brass.

To read about how my first time with it went check out my blog: http://blog.stegough.com/index.php/ultr ... ass-cases/

Anybody here use this method? What do you use for your solution...?

[20series]

Personally I use Just use water and citric acid to limit any damage to the cases.

Alan

[TattooedGun]

How much citric acid do you use? What proportions?

Do you rinse?

I used Citric Acid and water, but then neutralised the acid on the case with Bicarb then rinsed it all off with tap water....

5% solutions of both.

[20series]

sorry mate, I put in table spoon per litre which seems to work.

I run through as many cycles as needed, the rinse in cold water and dry off as best possible using kitchen towel. Then I leave them to dry or have been know to put them in the oven as it cools down after tea

Alan

[DW58]

I find warm water and washing-up liquid does the trick. I've tried adding vinegar but don't really think it's necessary.

I'm 100% an ultrasonic convert.

[Charlotte the flyer]

Do you get white residue on your cases? I do but I'm in a hard water area.

I use the seaweed stuff from Maplin btw.

[TattooedGun]

I got white residue on the first batch of cases because I didn't rinse off the bicarbonate of soda, after that I rinsed every one with fresh tap water. luckily our water doesn't have too many minerals and aside from very sparse water spots, I didn't get any marks on the cases...

[rox]

Sounds like you need to neutralise the bicarb with some kind of acid. Maybe citric would do it.

[DW58]

Being in God's own country we don't got no limescale here.

[sharps4065]

Malt vinegar then rinse them in cold water or put them into my rotary with SS pins if i want them subsequently polished.