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What grit of sandpaper should you use after filling in holes and cracks before painting?
Wiki User
∙ 14y ago
Initially, you can use as any grit you need to get the area straight, once it gets near that stage you need to step up in the grit to remove scratch marks. I would not prime any surface with greater sanding marks than were done with 220 grit. After priming I would block with 400 grit wet or dry
Wiki User
∙ 14y ago
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