Take the time to thoroughly remove the dust by air before moving on, and keep blowing if you see or feel any large particles on the plexiglass. Avoid using a microfiber cloth, because although microfiber is non abrasive, scrubbing dirt or dust with the cloth before blowing larger particles off will still scratch the glass. [2] X Research source

You can also pour the solution into a spray bottle, and gently spray the plexiglass. Keep the plexiglass at a 45 degree angle and allow the mixture to run down the plexiglass slowly. Gently running this mixture over the plexiglass will remove the smaller particles of dust and dirt, preparing the glass for wiping.

Although it is best to use a soap and water mixture, there are some products you can buy that are meant specifically for plexiglass, like Brillianize or Novus.

Good alternatives to microfiber cloth are cheesecloth, terry cloth, jersey cloth, cotton flannel, or any other non abrasive material.

Water spots are not anymore difficult to remove than dirt or grime, and should come off easily.

Using a sharp tool like a razor blade is great for shaping any jagged or uneven edges. Slowly slide over the edges with the razor blade, shaving small pieces off evenly until the uneven edge suits your needs. [9] X Research source Be very careful with sharp scraping tools, as they could cause injury if used incorrectly.

For deep scratches, begin with a 220 grit or 320 grit piece of sandpaper and move up to a 600 grit or 800 grit sandpaper later on. Always wear a mask when sanding to avoid dust inhalation.

Clamp the plexiglass in place so that it doesn’t move while buffing. Use a medium cutting compound for a glossy finish or a fast cutting compound for a higher luster finish. [12] X Research source