MOR-FREE™ 1390A is the polyester component of a two-component solventless polyurethane laminating adhesive system used in retort packaging applications.
MOR-FREE™ 1390A is combined with the coreactant MOR-FREE™ C-33 to form a 100% solids, two-component polyurethane laminating adhesive. Of the solventless laminating adhesives that Dow manufactures, this adhesive is the only one suitable for creating film-to-film laminations for retort packaging because of its outstanding heat and chemical resistance. MOR-FREE™ 1390A is also used in applications that require excellent UV resistance, such as outdoor bags, when paired with the MOR-FREE™ C-33 coreactant. This is because MOR-FREE™ C-33 is an aliphatic isocyanate, which resists yellowing upon exposure to UV. This adhesive system provides fast run speeds, low odor, excellent adhesion to metallized films, and broad FDA compliance.
Solids, %: 100
Viscosity, cPs: 3,700
Weight/gallon, lb/gal: 9.85
Appearance: Clear yellow liquid
Odor: Practically none
Shelf life, days: 360
Primary Chemistry: Polyester urethane
Zero VOCs
Compliance with numerous FDA regulations, including 21 CFR 177.1395, 21 CFR 175.300, 21 CFR 175.105, and 21 CFR 177.1390
Nonyellowing
Outstanding heat and chemical resistance
Restrictions of using adhesives in high-temperature food contact applications
Damage to adhesive bonds during sterilization of retort packaging
Yellowing of outdoor large-format bags due to UV exposure
Health and safety hazards posed by using adhesives with high-VOC content
Retort packaging
Hot fill pouches
Microwave packaging
Outdoor bags
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