![]() Leaving the thin plastic film on the surface acts as a lubricant to an extent, but if your blade starts to overheat, pause and turn off the saw to let it cool. As mentioned earlier, an overheated blade on a power saw can also cause plexiglass to crack and break during the cutting process. A dull blade will fight against the material, potentially causing cracks and breaks-not to mention an overly rough cut edge. Whether using a hand tool or a power saw to cut plexiglass, it’s important to use a sharp blade. When using a knife such as a box cutter to cut plexiglass, be sure to score a straight, deep line before attempting to break the material at the mark. Leaving that film on as you measure, mark, and cut will prevent scratches from your tools and work surfaces. As mentioned above, plexiglass usually comes with a thin layer of plastic film intended to prevent scratches as the material travels from manufacturer to retailer to your workshop. Keep the following tips in mind when learning how to cut plexiglass to prevent irreversible damages. Though plexiglass is a durable material, it’s not unbreakable. Tips to Avoid Cracking or Breaking Plexiglass as You Cut Outfit your electric drill with a buffing pad and, after applying a polishing compound formulated for plastic, bring the plexiglass edge to a perfect polish. Once you are satisfied with the appearance of the edge, move on to buffing.Finish by sanding with 600-grit sandpaper. ![]()
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