Teslin is a waterproof synthetic printing medium manufactured by PPG Industries. Teslin is a single-layer, uncoated film, and extremely strong. Its official website states that it is recyclable and non-toxic.[1] The strength of the lamination peel of a Teslin sheet is 2-4 times stronger than other coated synthetic and coated papers. Available thicknesses run from 7 mil to 18 mil, though only sizes 10 mil and 14 mil are sized at 8.5" by 11" for printing with most consumer printers. Also available are perforated versions, specifically, 1up, 2up, 3up, 6up, and 8up.
Teslin is commonly used for producing waterproof maps, door hangers, flash cards, horticultural tags, parking permits, and more.[2]
Teslin is also widely used in the plastic gift and loyalty card industry. In 1984, the first Teslin-based plastic card was produced by Ron Goade, done through laminating the Teslin substrate after having been printed on and then cutting multiple cards out of the laminated sheet of Teslin.