Bluing INFI

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firecog

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Just scored a NMFSH BIG dressed in Green and Bladck G10 in the T-day Ganzaa and intend it to be a user.
With that in mind, has anyone ever blued INFI ?
 
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One forumite tried it but the bluing vaporized upon contact with the INFI...

But seriously I'm pretty sure it can be done, the Regulators are blued or Parkerized
 
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I thought I had developed a slight patina on my InFidu ..key word being thought , after I finished using it , I cleaned it with soap and water and bam spotless again , pretty dam hard to blue or patina the stuff
 
PeteyTwoPointOne said:
One forumite tried it but the bluing vaporized upon contact with the INFI...

But seriously I'm pretty sure it can be done, the Regulators are blued or Parkerized
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Remember, the Regulators are made from SR-101, not Infi. Pretty sure that i have read a Thread about all that, whic stated that it was not possible.
 
Brownell OxphoBlue crème worked very well for me on my TGLB. I can't currently upload a pic, but they are floating around on this forum.....
 
I bought one of the first 300 SHBM's from the shop. I never could blue mine. Probably using the wrong stuff.
 
I don't know what they used but I had an old rifle once that had a stainless barrel that was blued. It wasn't like normal gun blue,more of a deep shiny brown. This was on a very old rifle,one of the first they ever use stainless on.
 
AFAIK, satin INFI will not take a blue. My speculation is, that if ones strips a coated blade, and does not abrade away the decard layer, then that layer can be blued.
 
Here is the NMSFNO I stripped, contoured the handles, satin finished(decarb layer definitely abraded away) and Birchwood Casey cold blued (about 5 times) about 4 years ago.
Some other lucky HOG owns it now.

Odd thing was the spine where the scales are at would not take.

Must have something to do with grain structure.

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Yes, that knife of yours seems to be the exception to the general rule. Has any other blade taken a blue as well as that one?
 
I don't know I have not tried any other knives yet ?
Have you tried to blue any ?

How was this general rule established or where is the info ?

Or anyone else try it ? I would be curious if it works on other stuff, SR101, S77, actual results not speculation or hearsay ?

Maybe I will ask Santa for more cold blue and go after some users :)
 
David Brown said:
I don't know I have not tried any other knives yet ?
Have you tried to blue any ?

How was this general rule established or where is the info ?

Or anyone else try it ? I would be curious if it works on other stuff, SR101, S77, actual results not speculation or hearsay ?

Maybe I will ask Santa for more cold blue and go after some users :)
Click to expand...

As a rule, bluing and browning, as done in the gun industry only truly work on carbon steels that have a propensity to rust or oxidize in other words. Steels that dont oxidize readily dont tend to take a blue as a general rule. SR101 and SR77 are both high carbon steels and take a blue very well. Rust resistant steels generally do not as a rule.

I've tried several early INFI steels with NO success. Later INFI is a hit or miss for me. Some I suspect as mentioned above have a layer of decarb allowing the blue to grab a hold. THe early CF Busse's had a great blue success because of that decarb.
 
Sounds spot on, Dwayne. Bluing & browning are processes of "controlled corrosion" to form a thin layer of oxidized material that tends to resist further oxidation, when properly cared for, of course. Or so they say.
 
David Brown said:
I don't know I have not tried any other knives yet ?
Have you tried to blue any ?

How was this general rule established or where is the info ?

Or anyone else try it ? I would be curious if it works on other stuff, SR101, S77, actual results not speculation or hearsay ?

Maybe I will ask Santa for more cold blue and go after some users :)
Click to expand...


Nope, never tried it myself. My concept of a general rule was derived from reading many posts here on this topic over the years, wherein people had reported that their own efforts to blue INFI were not successful. That is what led me to say that your blued knife was unique.
 
I have read in this forum that using a bluing pen is one way to test whether some of the old SHBA, SHMS and SHSHII knives are INFI or A2, and if I remember correctly A2 would take the blue but not INFI – apparently this is not always true (I have never personally tried this, I'm just repeating what I have read here).
 
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