Is it possible to polish out scratches in Perspex®?
Sanding, flame polishing and diamond polishing are all viable solutions for removing scratches on Perspex®. One point to be aware of is that diamond polishing removes material i.e. it cuts away a very small amount of material to achieve the polished edge, therefore if you want to remove scratches without affecting the dimensions of the part you should avoid diamond polishing. Another solution for removing light scratches and restoring shine is to use Osborn Unipol Plastic Polish.