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BONDERITEeTechnical Process Bulletin <br /> BONDERITE M-CR 1200S AERO <br /> CHROMATE COATING <br /> (KNOWN AS ALODINE 1200S) <br /> Spray and Immersion Application: <br /> Process piping and pumps should be constructed of 316 or 304 stainless steel alloys. Various formulations of plastic pipe <br /> may be used with recommended support spacing, Schedule-80 being generally recommended. PVC Type I is limited to <br /> maximum process temperatures of 140° Fahrenheit. CPVC and PP may be used up to a maximum process temperature <br /> of 190° Fahrenheit. PVDF may be used for all expected operating temperatures and may reduce the rate of scale <br /> buildup in process piping. The nozzles should be fabricated from 316 stainless steel. <br /> Heat exchanger plates should be polished 316 stainless steel. If gas fired burner tubes are used,they should be made of <br /> Schedule-80 mild steel pipe or equivalent. All process circulation pump seals,valve seats, door seals, etc., which come <br /> into contact with the process solution and occasional acid equipment cleaners, should be FKM or PTFE. EPDM may be <br /> used, but its life will be shorter. <br /> Chemical feed pump parts and other elastomers which may come into contact with the concentrated replenishing <br /> chemical should be FKM or PTFE. Again, EPDM may be used, but its life will be shorter. <br /> Support equipment available from Henkel Technologies for this process includes chemical feed pumps, level controls, <br /> transfer pumps and bulk storage tanks. <br /> Your local sales representative should be consulted for information on Henkel Technologies automatic process control <br /> equipment for this process and any additional questions. <br /> SURFACE PREPARATION: <br /> Cleaning: <br /> All metal to be treated with the processing solution must be free from grease, oil and other foreign matter before the <br /> treatment. A complete line of cleaners is available under the BONDERITE trademark and our representative will <br /> recommend the proper one for each installation. <br /> Water Rinsing: <br /> After cleaning,the metal must be thoroughly rinsed with water. The rinse should be overflowed continuously at a rate <br /> which will keep it clean and free from scum and contamination. <br /> Deoxidizing: <br /> Aluminum with corrosion products or heavy oxide coated surfaces should be treated with a deoxidizer prior to the <br /> conversion coating treatment step. The deoxidizing step should follow the water rinse and should itself be followed by a <br /> separate water rinse. Our representative can recommend the correct deoxidizer to be used. <br /> Henkel <br /> 3of8 <br />