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Henkel’s Bonderite C-IC 100 (was P3-Almeco 100) is a chemical treatment for light alloys, used before painting or resistance welding. It is an acidic cleaner, light blue in colour, designed to remove oxide films from surfaces, leaving them in a condition suitable for painting, and for chromate conversion, etc. For use in immersion processes – following rinsing the parts can be dried by either flash drying (hot water not exceeding 70 degrees C), oven drying at 100 degrees C, or by a compressed air blast for treatment before painting. Drying temperatures should not exceed 70 degrees C if chromate conversion coating is to follow. Some alloys, for instance those having a high copper content will develop a smut on the surface. To remove, treat in a nitric acid solution, and where the smut results from high silicon content add 4% w/w potassium fluoride to the nitric acid. Suitable extraction should be employed on the process tank, as acid spray mists may be generated during processing with Bonderite C-IC 100, this will ensure there is no escape of vapour or spray mist into the working area. Disposal: Bonderite C-IC 100 should not be discharged into the main drainage system without neutralisation to a pH acceptable by your local authority. In addition, rinse waters should also be neutralised if the pH is outside the limits also set by your local authority. Hazards and safe handling should be understood by all personnel handling/using this product, in accordance with current Health and Safety regulations.