This high-efficiency product successfully removes a wide range of mineral oils and polishing compounds from aluminium without attacking the substrate. Cleaning is the essential first stage of the metal surface treatment process. As well as preparing the substrate, it ensures optimal adhesion of the anodising layer to the aluminium. UltraClean SL-AL is ideally suited to use prior to the anodising chemical brightening and etching processes, as well as prior to the electroplating of aluminium. We advise to add 40 to 60g per litre.