Sintra is an acid-free, rigid, plastic board made of high-density, closed-cell PVC. It comes in 1/8" and 1/4" thickness. Both have the option to be digitally cut to shape. Sintra resists moisture and a few chemicals, which makes it great for construction boards, real-estate sign posts, industrial signage and exterior retail signs. Check out various Displays and Stands for Sintra-specific hardware including the A-Frame Signicade, Chrome Display Stand and PVC A-Frame. Sintra is an excellent choice for any type of long-term, outdoor signage.