In the construction process of waterborne wood paint, grinding is an important part of the process, although grinding will not harm the board, but the quality of polishing will affect the coating effect of waterborne wood paint, so in different processes, grinding will play a different role, then below, Haisun water paint Xiaobian for you to introduce it!
White billet sanding
Before applying waterborne wood paint, the panels are sanded to clean up surface dust, oil and burrs and enhance the adhesion between the wood paint and the panels. Generally, sandpaper with coarse sand grains (such as 180#, 240#, etc.) is sanded in the direction of the wood grain, and the uneven parts of the wood surface are smoothed, and the corners can be polished smoothly. It is difficult to clean surface stains without sanding, which will seriously affect the application effect of waterborne wood paint.
Primer sanding
Water-based primer generally plays a filling role, can be used 240~320# sandpaper normal sanding to smooth, no sand marks, must not wear the paint film sand, especially in uneven, edge and corners. It should be noted that in the water-based open coating process, the paint film is relatively thin, and you can choose finer sandpaper to polish along the wood grain.
Intermediate coating sanding
In the waterborne wood paint coating process, there are generally multiple primers or often used color correction, fixing, polishing, etc. are intermediate coatings. Choose 400~600# fine sandpaper for light grinding, the purpose is to remove particles on the paint surface, and at the same time increase the adhesion between coatings. The grinding method requires uniform attention and polishing until smooth, flat, no sand marks, no bright spots.
Topcoat sanding
The topcoat mainly plays a decorative and protective role. The sanding before the last water-based topcoat is to ensure the surface effect of the last topcoat, so it is possible to sand lightly, remove particles, and the surface is smooth and smooth. If it is a high-gloss effect, it is necessary to polish the topcoat to improve the smoothness of the coating, and save sandpaper and labor.
Haisun waterborne paint adhering to the "green technology, healthy life" corporate mission, is an independent import and export management right of innovative high-tech enterprises, condensed a large number of experienced scientific research team, has a number of product series, including waterborne wood paint, waterborne metal paint, waterborne polyurethane and other waterborne resins, welcome to consult.