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Development Color:
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Method to Record:
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Hazard:
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Protective Clothing:
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Fume Hood Use:
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Formula
Procedure of Application
Development Complete When
Source of Error
Incompatibilities
Precautions
Storage Container
Safety
Recommendations
Formula
Formula 44/40 (Instant Gun Blue): 1 part reagent to 80 parts distilled water Outer's Gun Blue: 1 part reagent to 40 parts distilled water Procedure of Application
Development Complete When
The development of black ridge detail occurs rapidly once the development process begins. Source of Error
Cartridges must be made of nickle or brass metals. Cartridges must be fumed with cyanoacrylate ester prior to immersion into gun bluing. Incompatibilities
Reagent does not work on lacquered steel cartridges. Precautions
Watch for over development. Ridge detail develops quickly once the reaction begins. The development may interfere with breech face markings necessary for firearms examinations. Storage Container
Made fresh with each application. Safety
Fume hood use is required. Recommendations
Be sure to continuously monitor the cartridges for development of ridge detail. Remove from reagent once development is visible. Vertical Divider
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Chemical Name
Gun Bluing Surface Used On Brass or Nickel Cartridge Surfaces Sensitive To Eccrine/Sebaceous Components Vertical Divider
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Ridge Detail Visualized by:
Visible chemical/stain reaction Reagent Applicabilities: Porous Surfaces Non-Porous Surfaces Cartridges Surfaces Other Chemical Name(s): Brass Black metal Touch Up BB2 Formula 44/40 Instant Gun Blue Gunslick Gun Blue Perma Blue Liquid Gun Blue PB 22 Super Blue Extra Strength |
Process Summary:
A number of gun bluing products sold under various trade names are used in a diluted solution to develop ridge detail on cartridge surfaces. Cartridges are first fumed with cyanoacrylate ester, then immersed into the gun bluing solution.
A number of gun bluing products sold under various trade names are used in a diluted solution to develop ridge detail on cartridge surfaces. Cartridges are first fumed with cyanoacrylate ester, then immersed into the gun bluing solution.
Accepted Deviations:
Several gun bluing products sold under various trade names may be utilized.
Several gun bluing products sold under various trade names may be utilized.
Supporting Reference Materials:
- Minutiae Magazine, Issue No. 32, Sept.-Oct. 1995, pg. 1.