Selar® PA amorphous nylon barrier resins provide unique oxygen barrier properties when wet or chilled, making the resins a perfect choice for flavor-sensitive refrigerated foods and beverages. In bottles, jars and other rigid structures, Selar® PA offers the crystal clarity of glass, but with lower weight and better impact resistance. Selar® PA can be blended with nylon 6 and with EVOH to provide certain property and processing advantages.
DuPont™ Selar® PT 4274 resin is a specialty, toughened polyester with melt viscosity optimized for processing in conventional extruders designed for polyolefins or polyesters. It provides an excellent barrier to flavors and odors, as well as many solvents, and a moderate barrier to oxygen and water vapor. Film made from Selar® PT 4274 is translucent and has strong heat seals to itself and other polyesters.
