A variety of mechanical pre-treatment techniques can be applied together alongside, or instead of, chemical pre-treatment.
Grinding in combination with etching ensures a surface that is free from die- lines. This pre-treatment is usually applied in a high-end market.
Grinding can also be used as a finish and gives a rough ‘scratch mark’ structure.
Brushing / Cross Brushing
Brushing is mainly used to apply fine or slightly coarser scratch marks in the aluminium, giving an RVS-look (Inox) or cross look.
Polishing is applied to achieve a satin shine finish. Mirror-shine is not possible using polishing and anodising. The level of reflectiveness can be influenced by changing the thickness of the anodisation layer.
Alucol can apply mechanical pre-treatment to products with a maximum dimension of 7,000 x 1,200 mm [L x W].