In modern furniture manufacturing, sanding is a crucial process. The aesthetic quality of furniture surfaces largely depends on the sanding quality, so furniture manufacturers pay great attention to the selection and use of sanding block for furniture.
Sanding directly affects the coating result. Using sanding block for furniture can effectively remove burrs, rust, and oil stains from the substrate surface, thus reducing the roughness of the surface to be painted. Especially after putty scraping, the surface is often not smooth enough, and the use of sanding block for furniture becomes especially important at this time. Through fine sanding, the surface can achieve the ideal smoothness, enhancing the adhesion of the coating and making the adhesion effect of the paint on the smooth surface more significant.
Throughout the entire painting process of furniture, sanding blocks for furniture are not only suitable for the stages of raw wood and base putty scraping but also need to be used for sanding after priming and top coating. This series of operations are key steps to ensure excellent paint surface effect and strength.
When using sanding block for furniture, choosing the appropriate grit of sandpaper is crucial. Avoid using overly coarse sandpaper and jumping grits during sanding (e.g., directly jumping from 200# to 600#). The correct approach is to transition gradually, ensuring each layer is thoroughly sanded.
Sanding must be done along the grain direction. Random sanding will tear the wood grain, leaving permanent flaws. For corners and edges of furniture, sanding should be gentle to avoid collapsing the edges and to ensure maintaining the original shape. For larger areas of furniture, use sanding block for furniture with a wooden block, sanding along the grain.
Brushing while sanding is also an essential technique. Since the sand grains often fall off the sandpaper, causing the wood grain to break, dust should be cleaned with a dry brush during sanding to ensure a smooth surface.
Sanding block for furniture can be used in many ways. Dry sanding uses sandpaper directly, suitable for hard and brittle paints but generates a lot of dust. Wet sanding uses water sandpaper, reducing scratches, improving coating smoothness, and being more environmentally friendly and labor-saving. However, after wet sanding, the surface must be completely dry before applying the next layer of paint to avoid the paint layer turning white.
For large-scale sanding, mechanical sanding is an efficient option. Electric sanders can significantly improve work efficiency. Additionally, light sanding techniques using finer sandpaper for touch-ups can ensure the coating effect meets expectations.
When selecting appropriate sandpaper, sanding block for furniture should be equipped according to different needs. Generally, use 180#—240# sandpaper for raw wood sanding, 320#—400# sandpaper for leveling the primer, and 1500#—2000# sandpaper for the final topcoat polishing.
In summary, sanding blocks for furniture hold an indispensable position in the woodworking industry. Proper use and technique not only enhance the appearance quality of furniture but also lay a good foundation for subsequent painting. For every woodworker, mastering the use of sanding block for furniture will make their work more perfect.
