Birchwood Casey Perma Blue 3oz Liquid
The Birchwood Casey Perma Blue 3oz Liquid is a cold bluing solution trusted by gunsmiths and shooters worldwide for restoring and refinishing blued steel firearms. Formulated for deep penetration and rich colour development, this liquid version offers fast, even application for large surfaces or detailed touch-up work.
Key Features
- Professional-grade cold bluing for steel firearms
- Liquid formula allows quick and uniform coverage
- Produces a deep, long-lasting blue-black finish
- Ideal for barrels, receivers, and minor blemishes
- 3oz bottle provides excellent value for home or shop use
Perma Blue Liquid has earned a reputation for producing one of the best cold bluing finishes available without the need for hot tanks or specialised equipment. Its controlled reaction with steel allows users to apply several coats for a custom-depth finish, whether you're fully refinishing a firearm or just repairing worn spots.
Best used after thorough cleaning and degreasing, Perma Blue reacts directly with the metal surface to create a corrosion-resistant layer that not only looks great but helps preserve your firearm. Pair with a good rust preventative or gun oil after application for maximum protection.
Note: This formula is not suitable for stainless steel, aluminium, or non-ferrous metals. Ensure surfaces are free of oils and residues for the best results. Always wear gloves and follow safety guidance when applying.
Whether you're a seasoned gunsmith or maintaining your personal collection, the Birchwood Casey Perma Blue 3oz Liquid offers the reliability, depth, and ease of use needed for quality firearm bluing at home.