One of the most delicate finishing processes is the bluing operation. Bluing is not a coating, it's a rusting process. Our hot tank solution uses a caustic solution of Nitrate salts and is heated to near 300 degrees F. Since bluing actually highlights imperfections in the metal, special care must be exercised in the preparation and polishing. If possible we chemically remove the old finish. We then begin with block polishing to remove imperfections while maintaining sharp edges and crisp lettering. Block polishing also helps prevent the rippling effect created by uneven buffing. Our polishing proceeds through 240, 320 and 400 rouge grits to duplicate the factory production finish. To produce our high gloss mirror finish, we continue polishing with 500, gray, and finally white (equal to 2500 grit). To achieve a low gloss matte finish, the metal is block polished, glass bead blasted and then finally blued.
We also match factory finishes when asked.
The following firearms are examples of Tyler Gun Works bluing.
Before and After Pictures:
More Bluing Examples: