Transform your steel with Hansen's Elite Rust Blue, a mercury-free, high-performance rust bluing solution crafted for durability and a stunning blue-black finish. Perfect for firearms, knives, tools, and metalwork, this premium formula offers superior corrosion resistance in just 4–6 cycles, outperforming cold bluing alternatives and even the renowned Brownells Classic Rust Blue. Its unique blend of ferric salts, nitric acid, and phosphoric acid creates a protective oxide-phosphate layer, ideal for carbon steel blades, gun barrels, and antique restorations.

Why Hansen's Elite Outshines Competitors:
Superior to Brownells Classic: Unlike Brownells (ferric nitrate, hydrochloric acid, nitric acid), Hansen's Elite enhances durability with a phosphoric acid hybrid layer, doubling corrosion resistance (tested models show 2–3x better salt spray performance). Its optimised formula reduces cycles (4–6 vs. 6–8), saving time, and replaces volatile nitric acid with a balanced mix, lowering fume risks while maintaining a deeper, more even blue-black hue.
 
Outperforms Cold Bluing: Compared to cold bluing (e.g., Birchwood Casey Super Blue, ~$20–$30 AUD/90ml), which deposits a thin, less durable selenious acid-based coating prone to wear and rust promotion, Hansen's Elite forms a robust magnetite layer with phosphate reinforcement. This material resists abrasion and environmental exposure better, making it ideal for everyday carry knives or outdoor tools, and it avoids the uneven, less protective finish of cold methods.
 
Additional Benefits: Mercury-free for safety, easy to apply (swab, rust, boil, card), and versatile for Damascus patterns or antique restorations.