1) If necessary, remove previous blackening and corrosion with the Bluing and Rust Remover: shake the bottle, apply the remover, leave for 10-20 minutes and then wipe dry with a cloth.
2) Degrease the surface with Cleaner
3) Shake the GunBlasky product and apply it to the surface with a cloth, swab or cotton swab. After a few seconds, rinse off excess product with water and wipe the surface dry.
4) Treat the surface again, rinse and wipe. It is usually enough to apply 2-3 coats to achieve a beautiful matte black surface.
5) Be sure to apply ProtectiveOil or neutral GunOil.