Premium Cast Vinyl is a smooth, glossy vinyl formed from a poured solution into a cast shape. After drying the Vinyl is rolled and cut to a particular size to be used in production of your graphics or letters. For this reason, Premium Cast Vinyl will not shrink over time and is considered superior to Standard Calendered Vinyl. We strongly encourage this option if you intend to have your vinyl outdoors for any extended period of time. In addition to this, Premium Vinyl is UV protected to help fight against the sun’s harshest elements and may last upwards of ten years with proper care and maintenance.