Letter 22079 Antiquing of copper and brass   +++ Can anyone help by giving informations about antiquing of copper and brass? I need information about the make up solution, the process and the maintenace, or maybe give me book reference on this topic. Thanks, Benny Lin - Jakarta, Indonesia +++ The oxidizing of copper or bronze is not a simple matter to achieve good results. It takes years to master this ART. Results are dependant on many variables, some are within the artists control. The substrate has much to do with the end result and can present many challenges to the artist. In short, I know of no publication that would guide the "lay-person" into this process without hands-on experience. Bruce Smith Hayward,WI, United States +++ Brown for cooper and its alloys: cooper sulphate......... 5 gm potassium permanganate... 5o gm water....................1 lit Hot immersion(9o C)!2-5 min. Green for cooper and its alloys: ammonium carbonate...... 25o gm ammonium chloride....... 25o gm water...................1 lit May be sprayed or brushed on object! For best result you must use brown colour first and then green! Only grease and oxide free objects can be coloured! Goran Budija - Zagreb,Croatia Dear Reader, please -- Answer or follow-up on this subject (in non-commercial fashion).   My company is a supporting advertiser at finishing.com and we want the contact information to reach the inquirer privately.   Post a new question or inquiry on a different subject.

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