Gun blue for knives - The HuntingPA.com Outdoor Community
 
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post #1 of 6 (permalink) Old 10-29-2017, 05:23 PM Thread Starter
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Gun blue for knives

Newbie who made 2 knives so far. So I wanted to try gun blue for some patina. Watched a couple of youtube videos and ready to go. Cleaned blade with denatured alcohol, put on gloves, heated blade with hair dryer as suggested and applied gun blue. Waited 1 minute then neutralized with water and wiped dry. AWEFUL....very splotchy, uneven and not very dark. Video said if you wanted darker repeat process. So I did and same disasterist result!

Suggestions? What did I do wrong?

Thanks.

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post #2 of 6 (permalink) Old 10-30-2017, 11:21 AM
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Try boiling the knives until they are hot enough to flash dry, apply the bluing solution with a cotton ball, when dry steel wool it lightly with 000 or 0000 steel wool and repeat until you get a rich blue, it will take several coats until you get a rich even color. Here is a picture of a rifle I did over 40 years ago with Birchwood Casey cold bluing solution. The rifle looks as good today as it did when I blued it.





When you are up to your butt in alligators, it is hard to remember your intent was to drain the swamp. Stay focused!

Last edited by Woods walker; 10-30-2017 at 11:36 AM.
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post #3 of 6 (permalink) Old 10-31-2017, 06:28 AM Thread Starter
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Thanks Woods Walker. Had similar experience with my try at using vinegar. Cleaned blade, heated vinegar and let blade soak overnight. This morning it was black until I tried drying it off the coating came off too. I'm starting to get a complex! Any ideas on tjis one?

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post #4 of 6 (permalink) Old 10-31-2017, 07:09 AM
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Non other than the instructions I gave you above.

When you are up to your butt in alligators, it is hard to remember your intent was to drain the swamp. Stay focused!
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post #5 of 6 (permalink) Old 11-03-2017, 07:17 PM
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A suggestion would be to use acetone instead of alcohol. If you buy cheap alcohol it may have unwanted byproducts.

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post #6 of 6 (permalink) Old 12-22-2017, 08:53 AM
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another suggestion..... to retain the black color, try boiling in water saturated with baking soda. This sets the oxides produced while etching so should work with this also,

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