Igneous™ Igneous is a polyester-based synthetic paper able to withstand harsh environments with a maximum heat index of 500°F. Its chemical top coating provides a durable surface for flexographic, thermal transfer and laser printing. Igneous offers high tensile strength and good product stiffness resulting in strong unreinforced hole strength. Material Specs Stocked calipers: 5mil, 7.5mil and 10mil Other calipers available Applications Market applications include labels, maps, menus/manuals, cards, stationery, tags, work-signs, packaging, publishing materials, charts and wrist bands. Back to Roll Express®