Using Blue Wonder black to restore an older M1A/M14 receiver and other M14 rifle hardware in making a replica of a M14 convert to a M21 sniper rifle Vietnam war late 1960s. The only part that is not taking black is the gas cylinder ( must be the type of alloy steel it’s made of) otherwise I’m very happy with results. Conrad
Did a quick test on the side of a lever action the night I got BlueWonder in the mail. Two coats of the recommended 5 and I'm already a believer!
Works good best I have used. Wished it had better direction. But Works well i was impressed with the outcome