MOR-FREE™ L75-164 is an isocyanate component used in a solventless, two-component polyurethane adhesive system for flexible packaging applications.
MOR-FREE™ L75-164 is an isocyanate designed to be used with the MOR-FREE™ C-411 polyol coreactant to make a 100% solids polyurethane solventless laminating adhesive system. This adhesive system provides incredibly fast bond development and achieves full cure strength within three days at room temperature. Laminates made with this adhesive can be further processed in as few as four hours. MOR-FREE™ L75-164 features excellent moisture, heat, and chemical resistance and is ideal for laminates in boil-in-bag, hot fill, and microwave packaging applications. This adhesive system works well to provide outstanding adhesion to high-slip films, such as LDPE and OPP, as well as aluminum foil.
Application method: Smooth roll transfer
Coreactant: C-411
Coating weight, lb/ream: 0.8–1.3
System chemistry: Polyurethane
Color: Clear yellow
Density, lb/gal: 9.5
Mix Ratio, pbw (adhesive:coreactant): 100:40
Shelf life, days: 360
Applied solids, %: 100
Supplied solids, %: 100
Cure time at 77°F, days: 5
Mixed viscosity at 110°F, cPs: 1,300
Nip temperature, °F: 120–140
Nominal application temperature, °F: 122–140
Post process time to slit, hrs: 4–8
Pot life at 110°F, mins: 45
Viscosity, cPs: 2,500–3,500
Primary Chemistry: Isocyanate
Zero VOCs
Rapid bond development, decreasing time needed for processing
Adheres well to high-slip films
Exhibits high chemical, heat, and moisture resistance
Easy cleanup
Low nip temperature
Adhesion to foil, metallized films, and high-slip films, including LDPE and OPP
Fast slitting time
FDA 21 CFR 177.1395 compliant
FDA 21 CFR 175.105 compliant
Adhesion failure of laminating adhesives in applications such as boil-in-bag packaging, where exposure to high heat and moisture is likely
Slow production of film laminations due to slow bond development of laminating adhesives
Health and safety hazards posed by using adhesives with high-VOC content
Hot fill pouches
Stand up pouches
Snack food packaging
Boil-in-bag packaging
Microwavable packaging
Condiment packaging
Produce packaging
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