3684 TriSolv™ Poster Paper Prime 6 mil is a multicoated, weatherproof paper with high wet-strength and a semi-gloss finish. This member of the TriSolv family, which is compatible with Solvent, Latex, and UV ink sets, is specifically designed for higher ink loads and richer densities, making it a suitable product for city light/mega light posters. Poster Paper Prime also has very good scratch resistance and good folding endurance, and can be used for both indoor or outdoor advertising, displays, and projects.