Ultraflex Ultralon® IV BL (20 oz) is a gloss finish, durable specialty back-lit banner and billboard substrate that is made to last! Extremely strong, Ultralon IV BL is the recommended material to use for long term outdoor back-illuminated applications. The unique gloss face-film produces vibrant and consistent color. It is compatible with solvent, eco-solvent, UV, screen printing and Latex inks. Available in widths of 126” and 196”.