PVC-free foam board signs are an alternative to Coroplast or FoamCore. The outer layers are made of paper fiber, making it lightweight, sturdy, and easy to handle.
World's First Video Lollipop Sign for Events
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1/8 White Foam Board Shop 1/8 Ultra Thin White Board in Pre-Cut Sizes at Foamboards
Custom PVC-free board signs are made of a PVC-free material that is also durable and lightweight. These PVC-free rigid signs from VistaPrint are
PVC-Free Board Signs
Custom PVC Boards & Signs Plastic Sign Printing - FoamCorePrint
PVC Free Foam Board Signs
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White PVC Foam Sheets Foamboard Mounting Sign Display Signage Board 3mm/5mm/8mm
Foamboard - Economy Sign Supply
PVC free foam sheet for signs and display, Wallis Plastic Products and PET Packaging Supplier posted on the topic