I plated an old derrringer after removing the old blueing and properly prepping the metal. This was a practice piece for my first try. The double barrel, lock and hammer came out pretty nice and shiny and polished even better. However the frame/receiver came out with a dull matte finish but was even. I prepped both the same and they were dipped together. I redipped the frame for a second time for another 30 minutes and didnt really change. I wasnt able to polish it out either. Barrels I am sure are steel and the frame should be steel but i dont know what it is for sure. Any tips or procedures to follow to redo the frame? Can you apply nickel over nickel? I have the small 1 gallon kit.
http://home.swbell.net/mortmit/Derringer_plated__2_.JPG