It’s hard telling but is there much left? Are the what appears to be gouges from using the screw driver to knock out the carbon?
There is not much left in the blast chamber. And what is left is likely not carbon, but either lead or copper build up. Cant tell what is left in the forward baffles, which is the area Im hoping will get cleaner by the time im off work.
Yea the scratches are from the screw driver. Non issue and wont effect anything.
So I take it we can check CLR off as pretty damn good eh?
Purple power took a bunch off in the beginning as well.
The CLR is likely stronger however, smells very acidic.
CLR is caustic, not acidic.
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I told you CLR works. We have played with everything here in our R&D lab.
Oh one other things guys if you use CLR. Melonite parts will turn a bronze color so if you do not want that to happen don’t use it.
Sure did work great. Thanks for the suggestion
Wonder if the AAC latch is melonite. It turned a bronzey type color while in there the first few cycles. I was thinking it was rust for a moment. Then it went away after a few more cycles. It came out being the only part with a finish left as you can tell from the pics. Bronze color is gone now.
Its still laying in the tank so it should be interesting to see what happens when I take it out later. Will have been in the solution for over 24 hours plus a few hours of run time with the UC. Stupid thing only does 8 minute cycles
It is melonite. Good to know the color came back. Make sure to rinse that sucker out really well as well. Having CLR blow back in the face wouldn’t be good.
So what’s the long term effect on corrosion resistance? Those after pics look like all the finish has been removed. You can rattle can the exterior, but what about the inner core??
Well either or. Im no chemist. I just knew it smelled like some bad shit haha
The inside is not finished on any silencer I have ever seen.
Carbon will coat it shortly anyhow.
Silencer are built like tanks. They are not fragile.
It didn’t effect our suppressors at all. We soaked suppressors in all kinds of stuff then cut them in half to see how well it cleaned. Didn’t notice any effects on the material. No need for coating the core. It wouldn’t last 20 rounds anyway.
Will do. I plan to flush with brake clean then blow it out.
My plan is to run a mag through it to blow out the chunks barely hanging in there. The solutions and UC have really softened up what carbon is left. Id imagine itll get blown out with the pressure from live firing
Little better pic I took and didn’t use last night.
It should be cleaner than this when I remove it tonight as the UC has taken more carbon out. Solution was near black again this morning.
Hmmm. I may have to give CLR a try. My blast chamber is nasty too.
If you wanted to protect the finish I imagine you just plug one end and fill it up. Of course you couldn’t use the ultra sonic cleaner in conjunction though.
ETA. Wonder how clr etc would react with black oxide finish? I have a gemtech halo I wouldn’t trying this on.
I find this interesting. What in the CLR is causing this reaction? Is it a physical appearance change that’s taking place or are chemicals rearranging in the melonite treatment itself?
Not sure on the finishes. Id expect it to remove just about anything. Was surprised the latch came out still black to be honest.
My stuff is used pretty hard. Ill just rattle can it as necessary from here on out.
Maybe someone will see my in the white AAC and think its a special addition and try and buy it for lots of cash? 
I’m horribly curious as to what would happen if I dropped an M&P slide in CLR… This reeks of bad bubba-gunsmithing but the chemist in me is dying to find out.