The placement of your poster or banner is key in determining the material to use. What’s the difference between indoors and outdoors? The elements. Wind, rain and sun can wreak havoc on the shelf-life of a poster or banner. Paper posters are no match against water and wind, they just can’t go outside for an extended period of time. Plus, the Sun’s UV rays can slowly fade colors or yellow the paper. For outdoor applications, one of the best and most common materials is vinyl with UV cured inks that resist the elements. Vinyl banners are extremely strong against high winds and ripping. Fully waterproof, they can withstand long exposures to rain as well.