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#577262 08/08/20 08:20 AM
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What's the best way to remove old bluing in preparation for re-bluing?


Jim
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I polish it off and never bother with chemical removers.
Steve


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Naval Jelly works well...may take a few applications to get really clean. For a re-bluing you will want to polish anyway so Steve's way may be best.


Sam Welch
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Phosphoric acid as in the concrete etch from Home Depot will work and it doesn't etch as much as Naval Jelly. Have a tank large enough for the part. Plug the bores and let it soak.

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Steve: when you are starting with a blued gun, what's your process? Paper at 320 on up? Then soft wire wheel as with the rust blue?

For those who start with chemicals, like Mark and Sam suggested, anyone ever try something like evaporust? It's my go to for rust removal.

Last edited by Woodreaux; 08/08/20 11:24 AM.

Jim
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Post above detailing my process. Questions and comments encouraged.
Steve


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Steve, if a rust-blued barrel did not need the polish, but did need to tidy up thinning blue, could you just clean it well blue over it? Seems that the well blued areas would not really change much while the thin spots caught up. Never had the courage to try this however.


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BrentD #577287 08/08/20 12:06 PM
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Brent....that is the "old gunshow trick", Never "re-finished"...

You certainly can do that. Rust blue is a chemical process that can be stopped and started at will. It actually works quite well in certain situations, especially for small areas of repair. I do that regularly after re-attaching fore end lugs that have come loose.

In some ways it is not that different than blending an area of stock repair in to an existing finish.

Steve


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I've used CLR, its mild compared to the other methods and is available at your local grocery store.


I learn something every day, and a lot of times it's that what I learned the day before was wrong

james-l #577293 08/08/20 01:27 PM
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If it is still on the market, brick cleaner "Sur Kleen"(?) used full strength works immediately, but has to be washed off immediately also, or it will cause pitting. As far as bluing over old finish that doesn't need polishing, SKB is absolutely correct.
Mike

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