Our 3mm Opal 040 Perspex Acrylic Sheet in a handy 600 x 400 mm size is a popular choice for laser cutting and engraving projects that need a clean, diffused finish with excellent light transmission. The Opal 040 grade offers a perfect balance of light diffusion and opacity. While not fully transparent, it allows approximately 37% light transmission, making it ideal for backlit signage, illuminated displays, lightboxes, and decorative panels where a soft glow is desired without seeing the internal components behind. This acrylic sheet cuts cleanly with laser machines, and the opal white finish provides a smooth, professional look straight off the bed. It’s also UV-resistant, durable, and lightweight – perfect for both indoor and outdoor use. Key Features: Sheet size: 600 x 400 mm Thickness: 3 mm Colour: Opal White (Opal 040) Approx. 37% light transmission Ideal for backlighting and diffused illumination Easy to cut, engrave, and polish with CO2 laser machines Supplied with protective film on both sides Whether you’re creating signage, edge-lit panels, or lighting prototypes, this versatile opal acrylic will give your projects a bright yet elegant finish. Perspex colour reference code: Opal White: 040. Dimensions: Length: 600mm. Width: 400mm. Thickness: 3mm (nominal). Tolerances: The manufacturing tolerance for the thickness of cast Perspex acrylic sheets are the stated thickness /-10% plus /- 0.4mm. This means a 3mm Perspex sheet could be between 2.7mm and 3.3mm in thickness.
