Firearms Maintenance expertise and recommendations for the firearms user community, from step-by-step directions to just sharing years of experience.

Tetra Copper Solvent Works

I hear praise about it wherever I go because it does the job vs. other brands.

There is no magic to Tetra Gun Copper Solvent other than the formulation works well. It has ammonia in the mix, as most traditional copper solvents do, but it is a non-etch formula, which means it is distributed to just the right percentage.

For those who have used this product, the consistency is in a gel state. As opposed to a low viscosity liquid that will run off a bronze brush, the Tetra Gun Copper Solvent, due to its consistency, stays on the brush, and of course, a cotton mop or patch. That’s important.

To be effective, as intended as a product that is designed to remove copper buildup and other heavy fouling off of gunmetal, the Tetra product performs as advertised. This has been recognized for decades. On contact, the chemical reaction begins, quickly transforming the metal surface, and subsurface. You can see the difference. With necessary brushing, and additonal exposure time, a more thorough cleaning is accomplished. Despite questions that I have gotten over the years about soaking barrels overnight in it, the answer is “No, you don’t have to with our product.” In general, too much of anything is not a good thing.

I also advise that after you are done, and wipe off / wipe out solvent residue from within the bore, you can hit it with Tetra Gun Spray II or Triple Action aerosols. The two are nearly identical aerosol formulas. This will stop the copper solvent from continuing. And, if you want to be really fastidious (big word), finish with a swab out of high percentage isopropyl alcohol (91%+) on that gunmetal to further ensure neutralizing, but more importantly, removing solvent residue. As I have stated often, you want to apply lubricant to clean, dry parts. That means you want the last patch running thru the bore to come out clean.

Using copper solvent after recently firing shotgun, for example, also known as “after action”, saturated patches will come out looking amber. However, if you are doing a long-overdue bore cleaning after letting a long gun sit for many months or longer, those patches come out all kinds of funk colors, ranging from something like a teal, to a purple hue. That’s common considering that the copper is transforming, just like an old corroded penny.

Some people have noted from time to time that the bottles have leaked. The seal material off the cap is selected to resist the solvent’s intent to eat away at plastic-type materials, but nature ultimately wins. The product inside is fine, but it’s not a good look. A gunsmithing at one of our oldest and most respected dealers in Western Pennsylvania mentioned that to me, but he also added that, “it’s ok, understood, it’s worth it. Great product.”

All of that is very appreciated. The only thing I will leave you with is that as a corrosive, as its categorized, you should wear gloves when handling it. And, with any chemical that makes contact with your skin, wash your hands with soap and water, and repeat if needed. The same goes for carbon fouling after shooting. You don’t want to go eat with blackened fingers after your range time. It’s just not a safe move.

Take care of your investment. Clean and lubricate your firearms.

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