Engineering grade reflective sheeting is enclosed lens reflective tape material with a special coating layer, embedded in micro glass beads of excellent retro-reflection. Engineering grade reflective sheeting has two types, PET and Acrylic (Acrylic type is for silk screen printing), have as long as 7 years work life. It is widely used for various traffic signs, road safety signs (such as STOP sign), sign posts, street signs, parking signs, industrial safety signs, work zone safety signs, and traffic control devices (such as traffic cone sleeves).