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Don't use a cloth that has an abrasive side since it will only add more scratches to your plexiglass. [8] X Expert Source Claudia & Angelo Zimmermann Whether acrylic plastic is being used for home use or commercial use, it’s an unfortunate reality that it may accidentally become scratched. Fortunately acrylic’s physical properties allow it to easily be buffed with special, slightly abrasive solutions. If a scratch is less than 5 mm deep, it’s a simple procedure to fix acrylic.If some scratches are still visible, get the sandpaper, water, acrylic polish, and a fresh, clean cotton or microfiber cloth. Then, follow these steps: Wet one piece of 800 grit sandpaper - run it over the scratch in a circular motion and repeat with a dry piece of 800 grit sandpaper. Alternate between the dry and wet sandpaper, rubbing for 2 to 3 minutes. Don’t worry if your acrylic begins to look more frosty or appear to have more little scratch marks on it - this will go away during the process.
Rub the sandpaper over the scratch in a circular motion. The buffing motion combined with the abrasiveness of the sandpaper can help remove many scratches. Work gently, however. Being too forceful can cause new scratches. [10] X Research source Make sure that the acrylic sheet is cleaned either with dish soap or Novus No. 1. Then, follow this procedure to remove moderately deep (under 5 mm) scratches from acrylic: Take a good look at these mild scratches. If the scratches are only visible upon close inspection, sandpaper may not be necessary. Instead, use an abrasive acrylic polish (we recommend Novus No. 2) directly on the scratched area and apply consistent, moderate pressure to a clean, soft rag. Move it in a circular motion until you can’t see the scratches. This could take a few minutes, so don’t panic if the scratches don’t disappear immediately. When you believe the acrylic is smooth, gently wipe off the compound with a clean cotton or microfiber towel. However, if the scratch is any deeper than 5mm, it’s probably not worth doing as it’s unlikely to buff out. Likewise, if the scratches cover more than 30% to 50% of the area, or of the acrylic is very old, the cost of replacing the item or pane of acrylic probably will outweigh the effort required to fix it. For light scratches on acrylic
Alternate between the above two steps for about three minutes. Your acrylic may still look scratched – but we’re not done yet! By using a few simple techniques, along with Novus 1; Plastic Clean and Shine, Novus 2; Fine Scratch Remover, and Novus 3; Heavy Scratch Remover, you can actually add life to plastic and keep it looking new. While the process is similar to the one above, this time you’ll begin with 600 grit sandpaper. As before, wet one piece of 600 grit sandpaper and use circular motions over the scratched area for around three minutes, alternating with a dry piece as well. Next, do the same with the 800 grit paper for a further few minutes and finish with the 1200 paper until the scratches have disappeared. Dry the area with a clean cloth and then restore the shine with the acrylic polish. House Cleaning Professionals Expert Interview. 12 July 2019. Run the cleaning cloth under warm water until it's completely saturated. Wring the cloth out so it isn't dripping wet when you use it. [7] X Research source If your scratched plastic is clear it is likely to be either acrylic or polycarbonate, which are the two most popular clear plastics. Scratches can be removed more successfully from acrylic than polycarbonate. Once polycarbonate is scratched it is not really possible to remove scratches. Scratches can, however, be removed from both clear and coloured acrylics.
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