Discussion in 'Technical Questions & Information' started by old semperfi, Jan 7, 2012.

  1. i know this has come up before but has anybody had any luck with a cold blue process.i am redoing a tc hawkin and id like to try to redo barrel myself. old semperfi
  2. jack404

    jack404 Former Guest

    Jan 11, 2010
    old semperfi, recently i tried a Birchwood Casey kit , besides the need for good hot and cold water , surprised the heck outta me , i've now done 6 rifles , mainly old LE .303 ,

    and i can apply the same tricks to "patina" a rifle , for want of a better term , just like my own acid and oxide mixes ,

    follow the instructions ands like any blueing , you get out what you put into it

    clean it all to a eveneness and go from there as per the instructions

    for a blueing kit, its the first one i liked and i've written the company to say so

    you need 3-5 coats of the blueing mix to get dark but thats ok , it get's there nicely

    lousy pic's i know , sorry

    pic 1 stripped and rust remover treated before sanding and polishing

    its was rusty as heck outside ( good bore though)

    pic 2 , fake wear patina , rifle looks well used but good cond and original

    its a very flexable kit once you get into it ...

    Attached Files:

    Last edited: Jan 7, 2012

  3. goofy

    goofy Well-Known Member

    Feb 7, 2011
    Cold blue is NEVER better then hot blue!.Cold blue does not last.Cold blue will ware off. It WILL rust again.
    If you do the prep work hot blue will be cheper in the long run.Find a smith who will add your preped steel to a batch he is doing.I charge 50-75 to run pre preped steel through a batch.So if you want a blue that will last have it hot blued.
    Last edited: Jan 8, 2012
  4. CHW2021

    CHW2021 Well-Known Member

    Feb 16, 2009
    These guys are right, BUT, if you want to do the cold blue at home use Brownells oxpho. It is possible to easily get a presentable finish and it is literally wipe on/wipe off and buff. Personally I like it and have had excellent results for what I have done.

    Read the directions, individual results may vary, subject to standard disclaimer ect............
  5. The Duke

    The Duke New Member

    Mar 11, 2006
    NW Louisiana
    They right about the Oxpho..Only 'cold' blue that will give decent color to large areas...But still not as durable or deep as hot salts...

    You may want to read up on rust bluing...Done properly this will produce a blue that is in some ways better than todays hot salts...Time and labor intensive, but simple to perform...Dont know for a fact, but Brownell may have some rust bluing solution...

    Essentially rust bluing involves polishing and degreasing the gun....swabbing on an acid solution, waiting for the thing to rust, carding off the rust and redoing the acid application, repeating the process until you get the color you want..Takes a week or more...depending on the temp and humidity in your area...Can be helped along if you put the swabbed gun in a closed box with a light bulb inside to provide some heat...This will speed up the process...
    Last edited: Jan 8, 2012
  6. thanks for all he info guys,what do you think about powder coat compared to dura coat?this will not be a hunting rifle or foul weather gun.i plan on only informal target practice. old semperfi
  7. jack404

    jack404 Former Guest

    Jan 11, 2010
    i dont like the idea of powder coating unless they've manage to lower the required heat to get a long lasting heat proof finish
  8. StoneChimney

    StoneChimney New Member

    Nov 27, 2010
    Powder coating is also thicker and fills in markings and decreases tolerances.
  9. clamman

    clamman Active Member

    I just did a cold blue on a freinds Remington 512 and it turned out perfect. Took four coats to get it right. Follow the instructions exactly and you'll be happy. Like others said it will rust pretty easy, so keep it oiled and away from humidity.
  10. Helix_FR

    Helix_FR Active Member

    Apr 14, 2009
    Imperial, MO
    Powder coating still cures at 425. SC is right about the tolerances. People that know how to powder coat right have the silicon to plug those areas it screw holes and rails but the downfall of it is that once it chips, it goes.
  11. doubleslover

    doubleslover Member

    Oct 8, 2009
    It isn't difficut to get a great looking job with cold blue, I have done a few. Question is how durable is it? That being said, the next guns I do I am switching to the slow rust blue method. It can be done at home. As mentioned, it just takes time and being careful.
  12. just used a cold blue called g96,i put four coats on my hawken and it looks as good as not sure how long it will last but for 10 bucks its great. old semperfi
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