Shop for Light Diffusing Acrylic sheets. OPTIX® LD, OPTIX® 95, OPTIX® 95 LED, OPTIX® Frost LED, KSH® panels, and Plexiglas® Sylk light diffusing acrylic sheet, provides superior diffusion properties, impact resistance, and weatherability allowing for greater sign design flexibility with slim profile channel letters. Custom cuts and cut-to-size pieces. Have machined into fabricated parts. Acrylic comes in many colors. Stocked materials typically ship in 2-5 business days. Some materials may have a lead time of 2 - 12 weeks. Can’t find what you need? Get a quote.