Polyester Blend The ultimate in quality, clarity, durability and ergonomic performance for home and office floor protection.. Produced from 100% virgin Original Floortex Polycarbonate for ultimate performance and durability. Polycarbonate does not curl, crack, discolor or smell under correct application. Twice the impact strength of PVC for a rigid easy glide surface for maximum ergonomic performance. High clarity to allow the beauty of your flooring to shine through.