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Avonite gloss finish7/17
We are finishing Avonite (very black with little pattern) countertops to a gloss finish. We are using sanding method down to 2000 grit then the final step we use 3M finesse-it II finishing compound and polisher. We keep encountering small half circle scratches, for lack of a better word, that the polish isn't getting out. Any ideas on cause and remedy?
For what it's worth we had a job with black Corian and could not get a decent consistant gloss finish either.
Posted on your other thread as well but we sand down to 3000 with a 3M pad and water before polishing. The 3M machine polish is too fine to go from 2000. Perhaps thry the 3M #2 rubbing compound first.
Those scratches are coming from the earlier coarse grits and are not being removed by the steps after. Can you give us a run down of your process? Type of sander might help too.
There is no way a buffer will remove swirl marks from a heavy grit. Sometimes those scratches can come from what you would consider a fine paper.