3M premium mold and tooling compound aggressively removes sanding scratches in tooling gelcoat (P600 or finer discs P1000 or finer 3M Wetordry sheets), reducing sanding and compounding time while saving time and money for marine boatyards. Eliminate sanding scratches 3M premium mold and tooling compound rids boats of those annoying scratches that result from sanding. Our mold and tooling compound cuts quickly and leaves a fine finish that is easily polished to a high gloss. We recommend following up with 3M Finesse-it II finishing material (PN 09048)for a clean high gloss finish. Special formula for tooling gel coats. We recommend this compound for tooling gelcoats which have different properties than regular gelcoats. A tooling gelcoat is typically harder than regular gelcoat and therefore is often used for applications where no flexing will occur. Tooling gelcoats are ideal for molds that will not flex but will be polished to a high luster. To eliminate the fine scratches that come from sanding, we turned to science. We formulated a compound that works with the hard surface of a tooling gelcoat resulting in a smooth surface that can be polished to a mirror like high gloss.