How to Grind Porcelain
- 1). Wipe the affected porcelain tile area with a dry wash cloth. Fill a container with one part tile cleaning solution and three parts hot water.
- 2). Dip a clean wash rag into the solution and wipe the tile's surface. Let the solution dry for about 20 minutes.
- 3). Attach a 120-grit diamond grinding disc to an electric angle grinder. Plug in the grinder, release the trigger safety button and pull the trigger to ensure the grinder is working.
- 4). Set the grinder to its lowest speed. Pull the trigger and apply light pressure to the porcelain tile's surface. Move the grinder in a circular motion on the tile's surface.