Filling and sanding. Tools Needed: UV-curing acrylic resin or two-part acrylic repair compound.
For most scratches, you will need a progression of wet/dry sandpaper and a high-quality acrylic polish like the Novus Polish Kit For Light Scratches how to fix plexiglass
A Field Guide to Resurrecting, Repairing, and Restoring Plexiglass Filling and sanding
. This actually melts the two sides into a single piece of plastic. Stop the Crack: To prevent the crack from spreading, drill a tiny hole (1/16") at the very tip of the crack. Application: Use a needle-nose applicator to let the solvent "wick" into the crack via capillary action. Cure: Hold the pieces together (do not squeeze too hard) for about 30–60 seconds. Let it set for 24 hours for full strength. 4. Chips and Gaps For missing chunks, you’ll need a thickened cement like This actually melts the two sides into a