1, melt extrusion:

The method is the remaining component metal pigment and powder coatings (resin) through a screw extruder heating extrusion. Although metal pigment and powder coating can be fully mixed,but metal pigment orientation in the melt with high viscosity body deficiency. In addition, in agrinding process, the sheet structure inevitably pigment can be destroyed. Metal powder produced by the method of construction of the grey metal effect. Therefore, this method is only used for the production of hammer tone powder.

2, the dry mixed method:

The method is to divide the metallic pigment powder is added by a mechanical mixer mixing of powder coatings has been crushed in the. The advantages of the dry mixing method is metal pigment and powder coating when mixing is less intense, so as to prevent the deformation of sheet metal paint, metal effect and is not affected by. In addition, the loose paint / resin mixture also is very beneficial to the orientation of metallic pigments, improve the flash effect. This method is the shortcomings of automatic spraying powder recovery equipment processing by, because the metalpigment and resin powder particle shape, density and charge has the very big difference, resulting in separation phenomenon.

3, bonding and fixing method (Bonding-Process):

The method of metal pigment and powder coating side dry mixed, while at the same time heating, so that the temperature just above the resin softening point, this can be fixed in the resin bonded metalpigment powder adhesive surface, thus preventing the powder in the construction and after construction recycling separation phenomenon when metal pigment and resin powder. Is now popular bonding method.