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finish_stone_polished

Polished stone finish

stone_finish · mirror · mirror polished, wet-look polish, Carrara polish

Stone ground and polished through the full diamond-pad sequence to a mirror gloss — the surface that brings out the stone's full color and depth. The wet look. Carrara marble countertops, granite kitchen islands, the polished face of a lobby column.

Diamond polishing sequence 50 / 100 / 200 / 400 / 800 / 1500 / 3000 grit resin-bonded pads, then optional buff with cerium-oxide or tin-oxide compound on felt. Surface roughness Ra ≤ 0.1 µm. The polish brings out chroma — water-drop test: if a drop beads and looks shiny on the surface, the polish is complete. Vulnerable to acid etching on calcareous stones (marble, limestone, travertine — citrus, vinegar, wine all etch the polish away). Granite and quartzite are silica-bound and acid-resistant. Modern stone-care formulations include penetrating sealers (siloxane or fluoropolymer) to delay water and stain absorption without changing the surface look.

character — wet-look mirror, deep chroma, shows pattern fully, vulnerable on calcareous stone.

Finish properties

  • levelmirror
  • subcategoryhigh diamond polish
  • Ra (µm)0.08
  • applies tostone

Incompatibilities

  • high-acid contact (citrus, vinegar, wine) on calcareous stones — etches polish
  • high-traffic floor without periodic re-polish — wears matte

Second life

reversibilityzero on the existing stone — texture is geometric, present in the substrate. Re-finishing requires removing material to reach a different finish.
blocks substrate recyclingno
renewabilitymoderate — most stone finishes can be re-applied (re-honing, re-flaming) at the cost of minor material loss; field-renewability for indoor surfaces, shop-renewability for outdoor.

Marble Institute of America / Natural Stone Institute care-and-finish guides; ASTM C1242 dimension stone terminology.

Citations