"ORAJET 3551 High Performance Polymeric calendered PVC film with permanent grey backed solvent polyacrylate adhesive. For long-term advertisements with the highest degree of durability in outdoor applications. e.g. vehicle signage. Recommended for use with ORAGUARD® Series 215 and 290 laminate. Thickness: 70 micron. ¹Maximum Service Life: 7 years. Service year life based off European, vertical conditions.