Shop for KYDEX® 100 Thermoplastic Sheets. KYDEX® 100 Sheet is a rigid, tough, durable, plastic alloy sheet available in a wide range of standard and custom colors, textures, and sheet sizes. It is Underwriters Laboratories, Inc® recognized for UL Std 94 V-0, 5V. Custom cuts and cut-to-size pieces. KYDEX® Sheet comes in many standard and custom colors. Stocked materials typically ship in 2-5 business days. Can’t find what you need? Get a quote.