Why is blasting necessary even for new metallic surfaces.
Following the manufacturing process of hot-deep laminated metals, their surface is covered in an oxide layer called lamination burn – which sticks on the metallic surface protecting it from atmosphere corrosion. At first, this layer may have a beneficial effect on the metallic item but, when such item needs to be processed, the lamination burn may cause many troubles.
The protective layers applied on the metallic surface will peel along with the lamination burn – which will be very soon after application. Thus, the metal will remain exposed to corrosive agents and its life cycle will be shortened. No welding operation can be executed before removing this layer. The lamination burn can be quickly and efficiently removed by using the abrasive grit.