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 Post subject: Re-Bluing A Discovery
PostPosted: Sun Jun 09, 2013 10:06 pm 
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Joined: Sun Jul 15, 2012 1:03 pm
Posts: 152
Location: Lindsay Ont Area
So as most Benjamin Discovery owners know, the bluing on a disco is not the best to say the least. I've been thinking about re-blueing mine ever since I got it and was wondering
if there was any one who has done this before who could give me some advice? I was hoping to cold blue my gun.

I want to go for that "Air Arms" look if that is at all possible; very deep mirror-like finish. I know the steel is quite rough on a Disco tube and barrel, would this have to be sanded/polished
down or does the cold blue naturally make everything look smooth. What is the best way to go about poishing the steel if it needs to be done?

The big question... Where to get cold blue in Canada? Oxpho-blue, Perma Blue?

Thanks,

O.A

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PostPosted: Sun Jun 09, 2013 10:17 pm 
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Joined: Mon Sep 05, 2005 10:55 pm
Posts: 6845
Location: Rocky Mtn Hse Alberta
Forget cold blue.

My understanding of bluing is you polish the metal to the lustre you desire then the bluing just changes the color.

Check with Gippetto as he has some awesome rust blue results. Deep and rich!

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PostPosted: Sun Jun 09, 2013 10:22 pm 
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Location: Coalmont BC
If you want a polished finish, you have to start with a polished barrel and tube.... The bluing is only changing the surface layer from steel to an oxide that is bluish black in colour.... ie it is "rusting" it in a controlled way.... The thickness is only a fraction of a thou thick, so ANY mark on the tube will still show after the bluing is completed.... A scratch will still be a scratch, it will just be a darker coloured scratch....

I use a cold bluing solution called "Van's Blue" which I purchase on the Internet.... I apply it with a white (1500 grit) scotchbrite pad which helps to get rid of any blotchyness.... It's decent, and protects the metal, but it's not "stellar".... On the other hand, I usually finish my barrel/parts with a 600 grit finish, rather than polish it anyway....

Bob

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PostPosted: Mon Jun 10, 2013 12:42 am 
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Location: Canada
Thanks Walter. :)

Bob is correct...the finish you have on the bare, clean steel is what you'll end up with once blued....no bluing process I'm aware of will correct surface imperfections.

Wet/dry sand paper is the ticket for smoothing the surface. Sand the length of the part...at least with the final grit.

If you want a durable BLUE finish, visit a gunsmith and see what they can do for you...you're not going to get a "blue" with rust bluing because rust bluing is BLACK. :wink:

Rust blue is more durable than cold blue....easily as durable as a hot tanked blue. Any doubts, just rub your cold blued steel with 0000 steel wool and I'll do the same to a rust blued part...see who gets through the finish first. :lol:

I rust blue at home in my kitchen with minimal equipment. It takes more time and elbow grease than cold blue, but the results are well worth it IMO.

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PostPosted: Mon Jun 10, 2013 2:03 am 
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Location: Alberta Canada
Now aint dat purty......One heck of a good lookin pistola there Al........ :D

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PostPosted: Mon Jun 10, 2013 3:59 am 
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Location: Victoria, BC and Clarkston, WA
Is that a custom Main tube on the pistol, Al? It looks to long for a 2250?

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PostPosted: Mon Jun 10, 2013 8:22 am 
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Location: Canada
Thanks Kim...could not have done it without your parts, ammo, advice...and nudge. :)

Rick, only Crosman parts are the grip frame and trigger bits. Tube is 1"od..."custom" for sure. :)

.310 round ball @ 480fps, 6 shots/fill.

Al


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PostPosted: Mon Jun 10, 2013 2:34 pm 
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Joined: Sun Jul 15, 2012 1:03 pm
Posts: 152
Location: Lindsay Ont Area
Gippeto, that is one classy looking pistol you have there!

From what I understand I would have to sand of the old bluing, polish the metal to the lustre I like and then apply the cold blue. The richness of the bluing depends on how many "coats" of it I apply

From looking around on the internet I have seen some very nice results with cold bluing...

O.A

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PostPosted: Mon Jun 10, 2013 4:16 pm 
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Pretty much. Shine the metal to where you want it, then follow the directions that come with the cold blue.

I've had cold blue turn out really nice, I've just never had it stay that way. Will wish you good luck with it though. :)

Al


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