STOP-OFF PAINT FOR: GAS CARBURIZING Condursal 0090 Our most widely used stop-off paint: It can be used for all forms of both gas carburizing and carbonitriding. Condursal 710 Extremely effective stop-off paint for all forms of gas carburizing. Suitable for deeper case work up to .120" range. Conduron G55 Excellent protection against deep carburizing up to .225". The only stop-off paint available effective at these case depths. Condursal 777i Water base stop-off paint for all forms of gas carburizing and carbonitriding up to temperatures up to 1750° degrees F max. Conduron G55HK A special modification of CONDURON G55. Developed for application on small steel sizes and intricate shapes.