Acrylic and polycarbonate parts are cut and shipped with the manufacturer's protective film or paper covering intact.
Surface Protection Films - Grafix Plastics
How To Remove Protective Film From Acrylic & Plexiglass- KUSLA PLASTIC
Ratrig V-Core 3 3D printer Enclosure panels kit for 200mm, 300mm
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Protective Film For Plexiglass / Anti Scratch Protective Film
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ERRULAN Flexible Clear Acrylic Plexiglass Sheet
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I made a device to hold and backlight color vinyl and would
Glass and Acrylic Laser Safety Windows: Which One is Right for You
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Gordo's Side Rear Window Projects
SendCutSend Online Laser Cutting and Waterjet Cutting