Polypropylene Corrugated Plastic Sheet : Products : Best Choice
Amazon.com: Mega Format Expanded PVC Plastic Sheets - 12" X 12" Rigid White Sheet for Crafts, Signage, & Displays - Sintra, Celtec PVC Board - Waterproof for Outdoors Use - 1/8" 3mm
Correx Corrugated Plastic Floor Protection Sheets X 10 Black MADE IN UK BEST ! 5060341800832 | eBay
Amazon.com: Expanded PVC Sheet – 2 Pack – Lightweight Rigid Foam – 6mm (1/4 inch) – 12 x 12 inches – White – Ideal for Signage, Displays, and Digital/Screen Printing, Non-Porous : Industrial & Scientific