13oz Outdoor vinyl is the most popular material used for printing the outside banner marketing signage. The material itself is not blocked out (opaque) so it will let the sun go through. On the other side, the 13oz scrim/block-out banner material is opaque, so it won’t let the sun through or be transparent. 13oz scrim vinyl is used in applications where you want to print 2 sides or where the transparency of the actual piece matters. If for example the printed banner will be placed on a wall, where the transparency won't matter, 13oz outdoor material is a good choice to go with. If this is hung where the sunlight will go through and the transparency will be an issue, or if the pieces will need to be printed 2 sided 13oz scrim vinyl will be the best option. To order outdoor banners click here https://www.4over4.com/printing/printing-outdoor-banners.