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[Robinhood]

Rifleman, I went in this really hopeful brother but after 12 plus hours the copper penny soaked in Kroil looks clean but it still has a patina. There is no green or blue coloration in the container with Kroil and a penny in it.

The container with the penny and Wipeout is bright copper color that appears like it is being attacked chemically or a low PH, not polished or smooth. The liquid is a very dark blue and is obviously having an impact on it.

What my test did not show was if the penetrating action helped separate the copper from the base metal. What it did show is that Kroil does not attack or dissolve copper in the time frame of late last night until approximately 1545 CDT. 12-14hrs(i don't remember when I dropped them in.) It shows that within minutes, Wipeout was attacking and displacing copper.

If you believe my test to be wrong I encourage anyone to duplicate it with at least using Aero-Kroil as part of the test.

Personal opinion. I continue to believe kroil is a top notch product. For copper removal I will use something else and Wipeout has proven to be able to do the job. Better than I thought it did.

[Orezona]

Robinhood, where did you find a penny that was made of copper? I haven't seen one years!

[Rifleman#1]

Amen on the real copper penny! I am not beyond learning just read the details from WIPEOUT and think i will try it. although it is the exact same process and procedure ive used with Kroil. Kroil's info even states about aiding in removing copper fowling. good shooting .

[Dave Hoback]

Robinhood, where did you find a penny that was made of copper? I haven't seen one years!

Any penny dated 1982 and earlier is 95%+ Copper.

Charlie: I agree. That reaction with the Wipeout indicates an harsh Copper chemical reaction. And I absolutely trust Robin’s testing. It’s a head scratcher to me as I looked at the MSDS as well. The chemicals alone, on paper, don’t constitute THAT reaction. But can’t argue the results. But the same applies for Kroil results. Of course, like I was saying earlier, the Kroil will STILL clean the Copper fouling by simply WEARING it down with every patch/brush contact, through chemical abrasion.

[Rifleman#1]

simply not true i dont scrub my barrels with a brush i brush a few times then start the Kroil patch -dry patch process . let sit repeat . anyway nobody is going to agree on anything . and if you think Kroil or any one else lists all there proprietary ingredients i think your fooling yourself everyone would be stealing your formula . thanks for the sparring session didn't know i joined a boxing web sight. mike.

[Dave Hoback]

Rifleman, you are the only one uh, “boxing” there chief. For some reason, you are reading everyone’s posts with an negative attitude & inflection. Nothing I’ve said has been directed towards you, and I haven’t read anyone else’s post that was aimed directly at you. For the second time, NO ONE is admonishing YOUR choice. This is a conversation, and it’s OK if we do different things....and talk about it. I’m not really sure what you’re after, or why you set your anger towards me. I didn’t call you out a single time. Many of us here posting in this thread have known each other online for several years. The last page Charlie & I have been going back & forth. What ever I say isn’t an abject to you! I’m sorry you feel like it is. But that’s you projecting...the ANGRY voice inflection you hear in your head while reading my post. And that simply isn’t me. Ask some of the guys here. Or peruse through some of my older posts.

[charlie b]

We are just trying to find out why things work. I have known how ammonia reacts with copper but never knew how the non-ammonia solutions worked until this thread get me started.

As I stated, the Kroil proprietary ingredient must be something interesting as the other listed items should not turn copper to a blue solution.

And, yes, the SDS must have all the ingredients with a few exceptions (like water). If any are regarded a company secret then they are labeled such with the appropriate test results on toxicity, flammability, etc. Of the solutions I looked at for this thread the Kroil SDS was the only one to list a proprietary ingredient.

I've been through this before when researching bullet lubricants for cast bullets as well. It is quite interesting as some "special" products by some companies are really just common chemicals combined in a slightly different mix. But, they probably would not sell much if they admitted their product could be made at home for 1/10 the price. Some of the black powder cleaners/lubes are the worst offenders in this area.

[Rifleman#1]

UM HUM runs rampant in these web sights you post something and everyone tries to cut you off at the knees. Chuck Norris still isn't selling his peeeee . O any you insinuating im angry and have something in my head is what? I'm not a social media person for this exact reason good day old chap.

[Robinhood]

Hey brother. Like you, I think Kroil is good stuff. I was very interested in your results. I did a subjective test in hopes I would find something new.

Right this second I am looking at a penny sitting in Kroil. After twenty hours, there is zero sign of the copper being attacked. I have asked others to perform the same test so that they could see what I am a witness too. I have zero agenda with the exception to clear things up. I was hoping that the results would clarify things. It was in the best interest for everyone to verify your claim in the manner it was done. Knowledge is power.

[Robinhood]

Robinhood, where did you find a penny that was made of copper? I haven't seen one years!

Cash was used a lot when my bride and I first got married. So as we collected pennies in the penny jar( an old Ozarka 5 gallon water bottle) from change, and after it got abut half full, we started rolling them up by year. I knew that copper had increased in value many years ago when they stopped making them as my dad was a small time coin collector. So we marked all the rolls and she eventually took all of the 1982 and newer ones down and got cash for them I haven't been able to get rid of those memories but I guessed this was as good of time to use them as any.

We used to see silver coins show up every now and then. Dimes and quarters mostly but that was a long time ago. My eye still catches an old copper penny if it lands in my hand. It is interesting to see the differences in the stamping. The old pennies had much deeper impressions and more pronounced lettering, edge and Lincolns bust too. I cleaned some up in my metal pin tumbler as I didn't think any were valuable. I got my glasses out and was amazed by the difference I had never taken time to see.