1. Mechanical polishing
When constructing ceramic fiberboard on a large area, in order to improve work efficiency, mechanical polishing methods, such as electric polishing machines (disc type, vibration type), can be used.
2. Dry sanding
Use sandpaper for sanding. It is suitable for polishing hard and brittle paint. The disadvantage of polishing ceramic fiberboard is that a lot of dust will be generated during the operation, which affects environmental hygiene.
3. Wet sanding
Use sandpaper dipped in water or soapy water to polish. Water milling can reduce wear marks, improve the smoothness of the coating, and save sandpaper and labor. However, when spraying the lower layer of paint after the water abrasion, firstly, wait for the water abrasion layer to dry completely before applying the lower layer of paint, otherwise the paint layer is easy to whiten. In addition, substrates with strong water absorption are not suitable for water milling.
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