Nick’s post and the discussion on the scratching capabilities of Scotch-Brite pads made me think of what I use for scratch removal. Novus has been making polish for acrylics for over 25 years — their three-part system can handle almost all but the most severe scratches. I’ve used it to polish museum display cases, and even some glass, with excellent results.
The basic kit contains Novus 1, 2, and 3. The worse the scratch, the higher number of polish you reach for. Novus 3 will polish out deeper scratches, but it may haze softer materials. Novus 2 can clean up Novus 3, and Novus 1 will shine up Novus 2. Novus 1 offers the added benefit of being an overall plastic cleaner and anti-static spray. According to Novus, they’ll polish everything from plastics and acrylic paint, to windshields, convertible windows, light covers, and more.
In my personal experience with Novus — prepping museum cases for display — it was able to remove some of the fine scratches that could ruin expensive case work. Also, the Novus 1 became our general plexi cleaner for all shows and maintenance, because the anti-static feature allowed us to dust less during show runs.
Street pricing on the 8-oz starter kit is $13, but it’s a small price to pay for any plastic refurb work.