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Joined: Feb 2002
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Sidelock
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I have seen the Behlen's spray laquer recommended by more sources than just our friend Mr. Gaddy. I have not used it, yet.

Joined: Apr 2012
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rgh25 Offline OP
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Joined: Apr 2012
Posts: 63
Originally Posted By: SamW
rgh25, what is the engraving and the planned use of the gun? For a coin finish on an all steel engraving gun meant for heavy use I like an electroless nickel finish. Very mar and corrosion resistant. Plating would cover over inlays.


Sam
It is a JP Sauer that is now a 12g rifled bore, I am cleaning up a little bit of discoloration and plan on darkening the existing engraving after polishing the receiver as was original on this gun. I have recut the checkering and once the ribs are re-enstalled blue the barrels. just not sure what to protect the finish. I am tending toward wax at this point but its still kinda-sorta open at this point.

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Behlen's Jet Spray Lacquer, high gloss.

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rgh25 Offline OP
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Originally Posted By: eightbore
Behlen's Jet Spray Lacquer, high gloss.

I found it on the Grizzly web site $6 for a can plus shipping and handling, looks like it has many uses.

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Isn't there some way to chemically 'passivate' the polished surface? Maybe a phosphoric acid pickle, or something?

I have 3 older British boxlocks with an 'in-the-white' finish, and there does not appear to be any coating such as lacquer or wax on them. I suspect that they were originally case colored, but I can find no trace of any color left. Interestingly, they do not seem to be any more succeptable to tarnish, discoloration or rust than my case colored guns.

I would be very interested to find out what is (or was) done to them, if someone knows what how these guns may have been processed.

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A casehardened part will have plenty of thickness of the hard layer to polish the colors off and leave a uniform finish.

This surface is extremely hard and it is more resistant to rust than normalized steel surfaces.

My preference is for a bare coin finish with either wax or oil for protection.

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As Chuck H notes, a case hardened surface is more resistant to corrosion than an unhardened surface, even after the colors are long gone. Also, a highly polished surface is less apt to rust because it has a lot less surface area for moisture and oxygen to react with the steel. While phosphoric acid does leave a chemical coat that resists ferric oxide formation for a time, it will also etch the surface, and is very unattractive for use on guns. It is best left as a cleaner for steel that will be primed and painted.

Unless you plan on neglecting your gun, an occasional coat of good wax is probably all you need.


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