I have two .22 suppressors; SilencerCo Sparrow (stainless steel mono-core), and a Ryder 22A (anodized aluminum baffles). I read somewhere that, while aluminum and the "dip" (white vinegar and hydrogen peroxide mix) is a no-no for aluminum as well as titanium, if the aluminum was anodized, that would permit some protection from any issues using the dip. Because I've had such a hassle cleaning my Ryder 22A suppressor just using normal cleaning solutions, out of desperation I have used the dip method of cleaning its baffles twice now. The first time I only let the aluminum stay in the dip 1/2 an hour. I knew that wouldn't get the baffles completely clean, but figured, what the heck. Anyway, did that a few months ago and had no issues with degradation of the baffles that I could see Today, I decided to clean both suppressors. The Sparrow is resting nicely in the dip solution as I type this. I put the aluminum baffles of the Ryder 22A in the dip for two hours. I removed the baffles, soaked them in water, at the same time using a toothbrush to get off as much gunk as possible. Once again, I saw no degradation of the baffle material. Frog lubed the whole affair and put it together until the next cleaning. I will continue this regime, with the Ryder 22A, until I have reason not to. Any thoughts from people who actually know about such things, or have had a similar experience trying the dip with anodized aluminum baffles?? One last thing. I tried to keep track as to the number of rounds of ammo going through both suppressors. My best guesstimate would be around 500 rounds each. I find that putting any more than 500 rounds through either suppressor makes taking them apart really difficult. The only ammo I use in my suppressors is Federal 45 grain, plated, subsonic rounds. Very reliable. Very accurate.