Re: Paint Sanding
The proper grit is usually defined on the tech sheets for the product you are using.
Final grit is sometimes dictated by the color you are sanding. The darker the color the higher the grit. Sanding dry is sometimes wise with the correct paper as you get better control because you can see how it is cutting as you go. You can tell if you have a level surface as you go and not get surprised when the water drys. When sanding dry the finish is equivalent to a grit about 100 higher in wet. So 400 dry is like 500 wet. You need open cut paper to sand dry.
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