Deep scratches too severe for polishing alone treated with wet sanding first to level the surface, then machine polished back to gloss. The result is a significant improvement without respraying.
Some scratches go too deep to remove with a machine polisher alone. When a scratch has cut through the lacquer into the paint layer, polishing it will improve the appearance but will not eliminate it -- you are cutting away the surface, not reaching the scratch itself.
In those cases we use wet sanding first: a very fine abrasive paper used flat on the panel to level the surface around the scratch before the polishing stage brings the gloss back. It is a more controlled intervention than pure machine polishing, and it is the only reliable way to get the best result on deep damage.
Deep scratches cannot always be fully removed. What we can almost always do is reduce them significantly -- to the point where they are difficult to see unless you know exactly where to look. That is far cheaper than respraying the panel, and the result is often indistinguishable from a respray on casual inspection.
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