PDA

View Full Version : barrel brown


acmetim
May 6, 2011, 12:18 PM
anybody ever tried to brown or blue a stainless barrel???

Hawg Haggen
May 6, 2011, 12:34 PM
Brownell's Oxynate 84 and DuLite's 3-0 salts will darken it. It's a hot tank job tho.

Unclenick
May 6, 2011, 01:30 PM
Browning and bluing are oxidizing processes, and by definition, stainless resists oxidation. It does take special chemicals to darken it. Don't know of any way to brown one other than a paint-on finish, like GunKote and various other brands.

acmetim
May 6, 2011, 09:41 PM
hawg,
how hot does the tank need to be? and how would i plug the rifling so none slips in? a sharpened dowel?
thanks
tim

acmetim
May 6, 2011, 09:44 PM
also, is that a combination of brownells oxynate and du-lite? or is that an either one or the other?

T. O'Heir
May 6, 2011, 11:18 PM
You can't brown or blue SS. These guys sell an SS blackener kit though.
http://www.caswellplating.com/kits/black.htm#stainless

Hawg Haggen
May 7, 2011, 12:02 AM
how hot does the tank need to be? and how would i plug the rifling so none slips in
Don't worry about the rifling. tank should be around 300 degrees

also, is that a combination of brownells oxynate and du-lite? or is that an either one or the other?

Either one not both.

I've not done this, just researched it some. Those are supposed to blacken stainless but most forums I saw just said it darkened it to almost black.

Scorch
May 7, 2011, 12:31 AM
most forums I saw just said it darkened it to almost black.
It comes out a dark grey, kinda like charcoal.

Unclenick
May 7, 2011, 11:56 AM
Yep. Same as the cold blues for stainless. Really a charcoal gray, except the hot salt baths are tougher.

acmetim
May 10, 2011, 02:50 PM
why wouldnt i want to keep the chems out of the rifling, wouldnt that attract more fouling?

mapsjanhere
May 10, 2011, 04:34 PM
Because dropping a plugged barrel in a hot tank will pop out your corks in a heartbeat, splattering hot solution everywhere.

Dfariswheel
May 10, 2011, 08:18 PM
acmetim

Gun bluing doesn't build up on the metal, it colors it. Since there's no build up, there's no need to plug the bore for gun bluing like there is for other finishes.

The point here is that doing hot salts chemical bluing is a BIG job.
First the special tanks and gas burners to heat them and the other equipment and supplies are expensive.
Here's a link to Brownell's Gunsmith Supply. They sell the bluing equipment and as you'll see, it ain't cheap. Even a bare bones system will cost hundreds:

http://www.brownells.com/.aspx/cid=11346/k=/t=P/Products/Metal-Bluing

Next, the bluing operation has to be used in a room with nothing else in it because the corrosive fumes will rust anything in the room very quickly.
Some professionals have their setup outside under a good cover to prevent rusting all the water pipes and electrical systems inside.

The process is DANGEROUS at best.
You're dealing with hot corrosive chemicals that will explosively splatter the boiling chemical all over if a drop of water contacts it. People have been horribly burned and blinded because of a bluing tank accident.

Last, the process of bluing stainless steel is an "iffy" process, and the sellers of the chemical warn that the gunsmith has to be willing to experiment to figure out how to get the desired results.

In other words, you don't pick up a cheap tank and some chemical and expect to do an acceptable blue job on a gun, much less on stainless.
If you want a blued stainless gun, it would be far cheaper and safer to send it out to a professional gun re-finisher who knows how to operate the system to get a good finish.

Among others, the following professionals do stainless gun bluing:

http://www.fordsguns.com/