MOR-FREE™ 403 A is one component of a solventless, two-component polyurethane adhesive typically used as a laminating adhesive for flexible packaging.
MOR-FREE™ 403 A is the isocyanate component of a 100% solids, two-component laminating adhesive system. It is used with the coreactant C-411 to create the laminating adhesive, which provides outstanding adhesion to aluminum foil and nylon, polyester, and polyethylene films. MOR-FREE™ 403 A is suitable for use on both printed and unprinted substrates typically used in flexible packaging applications. As the adhesive features good heat and chemical resistance, it is useful for creating packaging such as stand up pouches, condiment packaging, and confectionery packaging for various types of food items.
Application method: Smooth roll transfer
Coating weight, lb/ream: 0.8–1.2
Chemistry: Polyurethane
Density lb/gal: 9.8
Mix ratio, pbw (MOR-FREE™ 403 A:coreactant): 100:60
Shelf life: 360 days
Cure time at 75°F, days: 7
Mixed viscosity at 120°F, cPs: 600
Nip temperature, °F: 120–140
Nominal application temperature, °F: 122–140
Post process time to slit, hours: 14–24
Pot life at 110°F, mins: 25–30
Viscosity at 77°F, cPs: 1,700
Primary Chemistry: Isocyanate
Zero VOCs
Excellent metal adhesion
High chemical and heat resistance
FDA 21 CFR 175.105 compliance
Low nip temperature
Regulations that limit the use of adhesives with VOC content
Adhesion failure to metal or high-slip films
Damage to lamination adhesive bonds due to exposure to chemicals or heat
Stand up pouches
Coffee bags
Snack food packaging
Condiment packaging
Confectionery packaging
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