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Expert's Corner — knife

Finishing Tips by Bob Flexner: Sanding

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Finishing Tips by Bob Flexner: Sanding

When sanding wood in preparation for a stain or finish, you need to remove all the problems in the  wood – mill marks, tear outs, gouges, etc. – with the coarsest grit sandpaper you’re using before  moving on to finer grits (to remove the coarse-grit scratches). This means that the coarse-grit  sandpaper you begin with should be able to remove the problems quickly and efficiently to reduce  the amount of work required. On the other hand, with factory pre-sanded veneered plywood or mdf, beginning with 150-grit sandpaper is usually adequate.As an example, 100- or 120-grit sandpaper is usually coarse enough...

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