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<p>[QUOTE=&quot;LEG END, post: 965092, member: 26139&quot;]<b>3m adhesive sanding discs.</b></p><p><br /></p><p>They come in one inch circles of the following grit:</p><p>2,400, 3,200, 4,000, 6,000, 8,000, 10,000, and 12,000 grain per inch. </p><p>Start using the grit that clears the deepest scratch: Do use a circular motion with light pressure, making sure to NEVER run the sandpaper astride with the scratch. Use a light as possible pressure. Once that scratch goes away, move up to the next grit. If you start with the 2,400 grit, use ALL grits until you reach 12,000. By that time a gloss will appear on the slab. DO NOT get the 25,000 grit solution anywhere near the edges of the slab seal. The chems in the solution are an unknown quantity, but i never even had an itch from the polish. If you lodge it in the slab seal, cracking may be inevitable. Once you are at the 12,000 grit, the 25,000 grit polish produces a fine mirror. It is what I used on canopy repairs in DOD. This repairs my music CD&#039;s to mirror, no problem. Enclosed is the solution polish data. The grit sandpaper is expensive. Lasts forever, seemingly.[/QUOTE]</p><p><br /></p>

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