Before processing

Using the current domestic best pretreatment technology henkel technology (guangzhou), ensure the quality of aluminum veneer surface treatment. Handler: degreasing, washing - alkali corrosion - water - washing, light, washing, washing, chromium - water - water - the water - washing drying, degreasing this procedure is to the aluminum surface oil removing, alkali corrosion is the corrosion on aluminum mirror with chemical method into honeycomb shape, easy and paint adhesion, the light will be some aluminum metal impurity removal, chromium will make aluminum plate surface using chemical method to generate a layer of chromium film, its molecular and aluminum one integrated mass, at the same time and the paint has good cohesiveness, pure water wash in order to better deionized water, using deionized water corrosion resistance of chromium film and have a great help to improve paint adhesion, to ensure that the product use fixed number of year