I-Fin AL DM Additive Description Introducing I-Fin AL DM Additive Nitric Acid-Free, Sulphuric acid-based desmuting process wherein this addition agent helps to remove the smuts/oxides from the Al surface prior to Anodizing. Features: Unique additive to be used in sulphuric acid based de-smutting process of aluminum & aluminum alloys. Incorporates the ‘oxidizing’ property into the sulphuric acid-based de-smutting process. Efficiently, removes the smuts & oxides from the surface. Benefits: Removes the necessity of using nitric acid-based de-smutting process and at the same time maintains the quality requirements. No nitrate contamination to the subsequent processes. get a quote