Since we're on the topic, I found a post in this thread that I found pretty interesting:
http://www.silencertests.com/silencer-f ... 729b903833
Here it is:
FWIW, I conducted my own test some time ago. Posted some results on subguns.
For stainless cans, 50/50 peroxide/vin. mix is the bomb. It indeed does the trick and your can will be spanky clean with no damage. I tried electrolysis with the solution and it made no difference in the cleaning speed.
As a test for aluminum, I placed a piece of 6061T6 in a container of the solution along with a 40gr lead bullet setting on top of the aluminum. After several changes of solution, the 40 gr bullet was totally disolved, the 6061 was unharmed, not even discolored or etched. I then placed the piece of 6061 in fresh solution buy itself and left it for a week. It began to pit on the rough edges.
My conclusion: The lead acts as a sacraficial metal in the prescense of aluminum much like the zinc anode on an outboard motor. In the case of an outboard, the zinc will be slowly eaten away, especailly in salt water while the aluminum is unaffected.
I would like to see a chemist confirm this mathmatically but my own tests indicate this is what happens. In addition, the mix is consumed and must be replentished based on the amount of leading. I'm certain a chemist could calculate the amount of solution required to consume X amount of lead in grams and a can could be accurately weighed when new and fouled and the correct amount of solution used without fear of attacking the aluminum. The reaction is fairly slow. I cleaned my stainless can over a period of a few days changing the solution once or twice a day.
Water as a rule and anything alkaline like lye or other soaps attacks aluminum.
If I used the 50/50 solution to clean a sealed can I would monitor it carefully over a period of a few hours. I would allow it to drain, rinse it, blow it out with compressed air and purge/soak it with several changes of denatured alcohol to purge all water from it. Then use a suitable lube to coat it internally.
The 50/50 solution is cancerous and poisonous as is any lead based solution. Label the waste container Lead Acetate and take it to you local waste handler, most municipalities have one. Do not dump in the city sewer. Wear gloves at all times when cleaning any leaded firearm.
What do you guys think about this, especially pertaining to cleaning a can with aluminum baffles?