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When designing industrial products, hand board models are commonly used for structural verification and display purposes. The surface treatment of hand board models used for exhibition and display is very important, and the key is the process. Below, we will introduce the basic steps of surface treatment for automotive hand boards:

Water transfer printing is the process of using water pressure and activator to dissolve and transfer the stripping layer on the water transfer carrier film. The basic process is:

1、 Film printing: printing various patterns on polymer films;

2、 Spray primer: Many materials must be coated with a layer of adhesive, such as metal, ceramics, etc. To transfer different patterns, different base colors must be used, such as brown, coffee, earth yellow for wood grain, white for stone grain, etc;

3、 Extension of membrane: Lay the membrane flat on the water surface and wait for the membrane to extend smoothly;

4、 Activation: Using a special solvent (activator) to activate the pattern of the transfer film into an ink state;

5、 Transfer printing: Using water pressure to print the activated pattern onto the printed object;

6、 Water washing: Wash the remaining impurities of the printed workpiece with water;

7、 Drying: Dry the printed workpiece at a temperature that depends on the material's quality and melting point;

8、 Spray topcoat: Spray transparent protective paint to protect the surface of the printed object;

9、 Drying: Dry the surface of the object after spraying the topcoat.