Brush-On Cold Bluing for High-Strength Steels
Our Ostermayer Hunting Gun Bluing Solution is specially formulated for touch-up work on existing finishes or complete bluing of firearm and knife parts.
Designed for high-strength steels, it delivers a deep black, glossy finish that restores and protects your valuable gear.
✅ Key Features
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Ideal for touching up worn or damaged bluing
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Suitable for complete bluing of firearm parts
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Works on carbon steels and other ferrous metals with up to ~3% chromium content
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Produces a deep black, glossy finish
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Easy, brush-on application
✅ How to Use
1️⃣ Preparation is key – parts must be evenly prepared and completely degreased. For best results, use Ostermayer Hunting Gun Degreaser.
2️⃣ Apply bluing solution evenly to the metal surface.
3️⃣ Let it work for 2–8 minutes to achieve initial coloring.
4️⃣ Rinse with warm water and repeat the application if darker finish is desired.
5️⃣ Once the desired color is achieved, fix and protect the finish using Ostermayer Hunting Bluing Fixer.
6️⃣ For extra shine, polish with Ostermayer Hunting Polishing Cloth.
✅ For Complete Parts or Rusty Surfaces
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For heavily rusted parts or full re-bluing, first soak components in Ostermayer Hunting Rust Remover Bath to strip rust and old bluing.
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Polish thoroughly with steel wool and rinse with water for a consistent finish before applying the bluing solution.
✅ Pack Contents
✅ 30 ml (approx. 1 fl oz) – sufficient for approx. 8 rifle barrels (depending on coverage and application thickness)
✅ Ostermayer Hunting Quality
Developed and tested specifically for firearms and knives, this premium bluing solution delivers professional results with simple, controlled application.
Perfect for gunsmiths, enthusiasts, hunters, and collectors who want to maintain their gear in top condition.