A treated article, comprising: a metal or metallic substrate; a treated surface of the metal or metallic substrate, the treated surface having fluorine, silicon, and carbon within the metal or metallic substrate, wherein the treated surface is produced by exposure of the metal or metallic substrate to an organofluorotrialkoxysilane and/or an organofluorosilylhydride and/or an organofluoro silyl and/or tridecafluoro 1,1,2,2-tetrahydrooctylsilane,, characterized in that -- the metal or metallic substrate is 304 stainless steel, wherein the treated surface has a water contact angle within the range of between 120° and 121° and a hexadecane contact angle within the range of between 77° and 78° prior to the thermal oxidation and wherein the water contact angle stays within a range of between 120° and 133° and the hexadecane contact angle stays within a range of between 77° and 81° during a thermal oxidation at 300°C in air over a period of up to 70 hours, or -- the metal or metallic substrate is 316 stainless steel, wherein the treated surface has a water contact angle within the range of between 125° and 126° and a hexadecane contact angle within the range of between 75° and 76° prior to thermal oxidation and wherein the water contact angle stays within a range of between 125° and 135° and the hexadecane contact angle stays within a range of between 75° and 85° during a thermal oxidation at 300°C in air over a period of up to 70 hours. a metal or metallic substrate; a treated surface of the metal or metallic substrate, the treated surface having fluorine, silicon, and carbon within the metal or metallic substrate, wherein the treated surface is produced by exposure of the metal or metallic substrate to an organofluorotrialkoxysilane and/or an organofluorosilylhydride and/or an organofluoro silyl and/or tridecafluoro 1,1,2,2-tetrahydrooctylsilane,, characterized in that -- the metal or metallic substrate is 304 stainless steel, wherein the treated surface has a water contact angle within the range of between 120° and 121° and a hexadecane contact angle within the range of between 77° and 78° prior to the thermal oxidation and wherein the water contact angle stays within a range of between 120° and 133° and the hexadecane contact angle stays within a range of between 77° and 81° during a thermal oxidation at 300°C in air over a period of up to 70 hours, or -- the metal or metallic substrate is 316 stainless steel, wherein the treated surface has a water contact angle within the range of between 125° and 126° and a hexadecane contact angle within the range of between 75° and 76° prior to thermal oxidation and wherein the water contact angle stays within a range of between 125° and 135° and the hexadecane contact angle stays within a range of between 75° and 85° during a thermal oxidation at 300°C in air over a period of up to 70 hours. -- the metal or metallic substrate is 304 stainless steel, wherein the treated surface has a water contact angle within the range of between 120° and 121° and a hexadecane contact angle within the range of between 77° and 78° prior to the thermal oxidation and wherein the water contact angle stays within a range of between 120° and 133° and the hexadecane contact angle stays within a range of between 77° and 81° during a thermal oxidation at 300°C in air over a period of up to 70 hours, or -- the metal or metallic substrate is 316 stainless steel, wherein the treated surface has a water contact angle within the range of between 125° and 126° and a hexadecane contact angle within the range of between 75° and 76° prior to thermal oxidation and wherein the water contact angle stays within a range of between 125° and 135° and the hexadecane contact angle stays within a range of between 75° and 85° during a thermal oxidation at 300°C in air over a period of up to 70 hours.