Rio PET 13 oz. Grey Back Ultra-Smooth (SGPET13) is for PVC Vinyl banners and can be used for printing on one side. With an ultra-smooth surface, it is compatible with screen printing, digital printing, and pressure-sensitive lettering. This product is intended for indoor displays. The PET laminated film enhances the smooth surface, which provides a low-curl edge, and it features a grey back for a more economical choice to help eliminate image show through.