Practical guide for painting wooden doors - Applic

2022-07-22
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For painting, different paint combinations and different construction processes have different painting effects, and wood door painting is no exception

for painting, different paint combinations and different construction processes have different painting effects, and wood door painting is no exception. Through the investigation of wooden door enterprises, we summarized the commonly used coating collocation and mainstream processes in the painting process of wooden doors, hoping to help colleagues of technical service system and business system, as well as dealers and wooden door enterprises

one of the painting series of wooden doors

Application of PE paint on wooden doors

furniture paint marketing service center Yin Chengzhu

I. Introduction to PE bottom +pu surface process

this process is suitable for full filling coating of deep conduit materials. Because PE paint has high solid content and fast film formation, it can shorten the working period, the comprehensive cost of coating is relatively low compared to the full Pu process, and the film is not easy to collapse, and good film performance can be obtained, but PE paint is a three liquid paint, The paint mixing is complex, the use time is short, and it is not easy to sanding, and it is not easy to repair after the paint film is damaged

II. PE bottom +pu surface process flow

III. precautions for PE bottom +pu surface coating process

1. In order to obtain good coating effect, the product must be inspected and repaired when it is online, and the sand must be comprehensively inspected with #240 or #320 sandpaper. If it is manual sanding, it must be carried out along the direction of wood grain to avoid sandmarks

2. The paint must be fully stirred before mixing, and the components must be used in strict accordance with the weight ratio marked on the package

3. In order to avoid paint peeling, a PU sealing primer must be sprayed before spraying PE primer to increase the wettability of the paint to the material

4. Each coat of paint must be fully dried before sanding, and sanding must be in place to prevent paint peeling

5. Grice should be wiped with white cotton cloth, and it should not be exposed in the conduit or groove. It must be kept along the grain of wood when finishing

6. Special gold oil should be added when finishing paint, and it must be sprayed along the direction of wood grain to avoid gun marks

7. In order to prevent the color of the corners of the product from sanding out, which makes it difficult to repair, it is recommended to spray a layer of Pu primer after the color repair, which can not only increase the adhesion, but also cover the sand marks. After the color repair is dry, fine sandpaper should be used for light sanding

8. The paint must be stirred evenly during use, and then sprayed after mixing and filtering

9. Heating measures should be taken when the construction ambient temperature is lower than 15 ℃

10. When the temperature is high in summer, Pu topcoat construction is prone to pinholes and other paint diseases. Attention should be paid to the matching of diluents and the adjustment of paint viscosity and coating amount

11. In order to prevent particles in the paint film caused by falling dust, the spraying and drying of Pu topcoat should be carried out in a dust-free room

12. In order to ensure a smoother surface of the paint film, the last coat of finish paint should be sprayed evenly along the direction of wood grain from near to far

13. The paint must be completely and physically dry before packaging

IV. process safety precautions for PE bottom +pu surface

1. PE paint blue water and white water should be stored at low temperature in different areas. Avoid direct contact during mixing, otherwise there is a fire hazard

2. PE paint white water will burn the skin, so pay attention to protection

3. In order to prevent spontaneous combustion of dust, the dust after sanding of PE paint should be recycled and soaked in water

4. The rags wiped by grace should be placed in the iron bucket and soaked in water to prevent spontaneous combustion

for more details, please see zhanchen's "Practical Guide to wood door painting"

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