- Birchwood Casey® Offers You The Best Ways To Touch Up Scratches And Worn Spots Or Even Completely Reblue Most Guns. It Will Give A Non-Streaky, Even Blue-Black Finish To Steel (Except Stainless).
- Both Perma Blue® Liquid Gun Blue And Paste Gun Blue Provide Great Blueing To Metal That Has Already Been Thoroughly Cleaned And Is Free Of Rust. Perma Blue® Paste Gun Blue Is Slower To Darken Than Liquid Gun Blue, But Will Build Up A Denser Finish. Note: Perma Blue® Liquid Gun Blue Will Not Blue Stainless Steel, Aluminum Or Non-Ferrous Metals.