Float the disc upside down in a dish of acetone. It doesnt take long for the color to start coming off. Maybe 30 seconds to a minute should work, but it might take a couple of tries.
It could also take the chrome off as well. If it does that you might as well remove the stamp completly
Destroyer, Firebird, Teebird, Valkryie, FLX Drone, Buzzz, Impact and Warlock