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Thread: Bore cleaning solvent

  1. #1
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    Bore cleaning solvent

    Does anyone have a lot of experience with Hoppes 9 for cleaning the bore and chamber? I've read somewhere that it's an ammonia based cleaner. Is this a bad thing? Would CLP be a better option?

    I just put some Hoppes 9 on a boresnake, run it through a few times, and leave it be.

    Edit: this is specifically for chrome lined barrels.
    Last edited by odugrad; 02-18-15 at 11:37.

  2. #2
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    It's probably fine the way you are using it, but I would avoid ammonia based products personally. I definitely wouldn't let it sit for a while. I'd think the back end of the bore snake should get most of it out of the bore.

    I only use M-Pro7 Copper Remover. It works very well and is ammonia and odor free. I highly recommend it.

  3. #3
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    Ammonia will dissolve the copper over time. It won't harm the Cr.

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    Not a chemist, but I believe ammonia is a base, and relatively safe on metals... OK, this is where one of you smart folks, who paid attention in chemistry class, lights up the guy who didn't....
    " I can't walk with gum in my mouth...It makes it to where I can't breathe"-The Wife Unit

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    Quote Originally Posted by Slab View Post
    Not a chemist, but I believe ammonia is a base, and relatively safe on metals... OK, this is where one of you smart folks, who paid attention in chemistry class, lights up the guy who didn't....
    Ammonia ions react with water and copper to create copper hydroxide(a water soluble salt with a blue to blue-green color).
    Due to the electronegativity of copper, it reacts, but iron and chrome will not, at least to an extent to worry about.

    Many bases are very aggressive with metals, most notably cyanide compounds.
    Last edited by MegademiC; 02-18-15 at 21:17.

  6. #6
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    Quote Originally Posted by MegademiC View Post
    Ammonia ions react with water and copper to create copper hydroxide(a water soluble salt with a blue to blue-green color).
    Due to the electronegativity of copper, it reacts, but iron and chrome will not, at least to an extent to worry about.

    Many bases are very aggressive with metals, most notably cyanide compounds.
    Thanks for being gentle
    " I can't walk with gum in my mouth...It makes it to where I can't breathe"-The Wife Unit

  7. #7
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    Hoppes #9 has a tiny amount of ammonia - hard to put it into the same category as Sweets 7.62 or similar aggressive anti-copper blends.

    If you have it, use it, and run a patch with some CLP or other lube through the bore when you're done cleaning.

  8. #8
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    I use Hoppes 9 to clean all my firearms. Even with all these CLP products Hoppes is still my favorite

  9. #9
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    I haven't been running anything else through after using the Hoppes. I'll be sure to start running a CLP patch through after the cleaning.

    Thanks, everyone.

  10. #10
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    I moved from Hoppes 9 to Hoppes 9 Elite it is odorless, non-toxic, non-flammable and biodegradable.

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