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ADCOTE™ 577A
ADCOTE™ 577A is the polyester urethane component of a two-component, solvent-based laminating adhesive system. This adhesive is typically used for film-to-film and film-to-foil laminations in flexible packaging and industrial applications.
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- Manufacturer: Dow
- Product Line: Dow Laminating Adhesives
- Product: ADCOTE™
- Industries: Adhesives
- Authorized Countries: Canada | United States
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Overview
ADCOTE™ 577A is a medium-performance polyester urethane adhesive set within an ethyl acetate solvent. It requires the use of Coreactant ADCOTE™ 577B to achieve full properties.
Compared to the ADCOTE™ 577 adhesive, ADCOTE™ 577A contains a higher–molecular weight resin that provides better green shear and bond strength. This facilitates faster slitting times and postprocessing to manufacture flexible packaging with less turnaround time.
ADCOTE™ 577A/577B can be used in all typical laminations for laminating aluminum foil and various polyester, polyolefin, and coextruded films typically used in food, medical, and industrial packaging applications.
Compared to other solvent-based laminating adhesives offered by Dow, ADCOTE™ 577A/577B can be used in a wider variety of applications, owing to its broad chemical- and heat-resistance properties. While it is ideal for dry snack food, meat, cheese, frozen food, and oily and greasy foods, it is also well suited for laminations that contain chemically aggressive solutions used in medical and pharmaceutical applications. The high heat resistance of this adhesive also makes it suitable for creating hot fill, boil-in-bag, and retortable pouches that involve the lamination of materials, such as polyester to foil or nylon to foil.
Specifications
Solids (%): 70
Viscosity (cPs): 2,500
Weight/gallon (lb): 9.2
Solvent: Ethyl acetate
Diluents: Urethane-grade ethyl acetate, MEK
Mix ratio (pbw, adhesive:coreactant): 100:6.4
Primary Chemistry: Polyester urethane
Features & Benefits
Excellent heat and chemical resistance
High green bond and shear strength that helps mitigate laminate defects
Fast slitting and postprocessing times
Good adhesion to varying materials used in flexible packaging and industrial laminations
Problems Solved
Laminate defects caused by high shear stress during early bond formation
Adhesion failure of film-to-foil laminates
Poor bond strength using other laminating adhesives
Delays in turnaround time for packaging using laminating adhesives with long cure times
Applications
Stand up pouches
Coffee bags and pouches
Large format bags
Meat and cheese packaging
Snack food packaging
Frozen food packaging
Confectionery packaging
Medical and pharmaceutical packaging
Condiment packaging
Hot fill packaging
Boil-in-bag packaging
Portion packs
Industrial laminations
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