Wet sanding is usually done after dry sanding to obtain a uniform finish. Unlike dry sanding, wet sanding does not form a surface, but eliminates the large scratches left by dry sanding.
Wet sandpaper varies from 220 to 3000 grains of grit. Wet sandpaper is often black and almost smooth because the sand is very small.
Sandpaper grains refer to the size of the abrasive particles adhered to the paper. The higher the grain, the smaller the particles and the finer the scrapes.
The first sandpaper you start wet sanding with depends on the previous grain you used to shape the object and the smoothness of the surface. If you last dry sanded with 600 grit, you will want to choose a wet sanding sand that is around 800-1200.
In general, you will want to start wet sanding about 600-1200 grains. and follow the same dry sanding rules to work through the sandpaper, jumping up to 200-500 grains. You can buy wet sandpaper up to about 3000 grains, but most people will be satisfied with about 1500 or 2000 grains.
A big difference between dry and wet sanding is the movement used. Dry sanding requires small circles; wet sanding uses straight lines, alternating the direction between passes. In this way, each successive pass works to remove the scratches from the previous one.
Use for wet sanding and dry sanding without changing sandpaper The full range of grades is ideal for aggressive or refined self sanding Auto abrasive silicon carbide fractures for longer life.
Fandeli water sandpapers are made of very durable waterproof paper. It has a latex backing that is ideal for lacquer, paint and varnish and is super flexible.
1,500 grains are used to sand the transparent layer. They are great for removing clear scratches that cannot be removed by rubbing the compound and polishing.
We use this to sand imperfections in the primer before applying the base coat or paint. We start with 600 grains and advance up to 800 grains.
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