ADCOTE 577A

Adcote™ 577A is the isocyanate-terminated polyester urethane component of a two-component adhesive system that requires the use of Coreactant Adcote 577B to achieve full properties. Adcote 577A/577B can be used in all typical laminations for laminating aluminum foil and a variety of polyester, polyolefin and coextruded films typically used in food, medical and industrial packaging applications. Adcote 577A/577B can be used in retortable structures to laminate polyester to foil or nylon to foil. The adhesive layer must be separated from the food product by a functional barrier.

Features & Benefits

Adcote™ 577A/577B adhesive provides high bond strength and a high level of heat and chemical resistance. Adcote 577A/577B exhibits high initial shear strength that helps mitigate laminate defects.

Key Properties

Application Method
Gravure
Coreactant
Adcote 577 B, Adcote 577C
Coating Weight
1.25-3.5 lbs/ream
Carrier
Ethyl Acetate
Chemistry
Polyester urethane
Color
Clear Amber Liquid
Density
9.2 lbs/gallon
Mix Ratio
100:8.8 for Adcote 577B, 100:5.6 for Adcote 577C
Recommended Diluent
Ethyl Acetate, Methyl Ethyl Ketone
Drying Web Temperature
150-180 °F
Key Performance Benefits
high bond strength and a high level of heat and chemical resistance, high initial shear strength
Shelf Life
360 days
Applied Solids
30-45 %
Supplied Solids
75 %
Solvent
Ethyl Acetate
Thinner
Ethyl Acetate, Methyl Ethyl Ketone
Cure Time
3-5 days @ 70 °F
Mixed Viscosity
2,300 cPs
Nip Temperature
150-220 °F
Nominal Application Temperature
Room Temperature
Post Process Time
4-8 hours @ 70 °F
Pot Life
> 8 hours
Substrates
Aluminum Foil, Polyester, Polyolefin , Coextruded Films
Viscosity
2,500 cPs

Technical Resources

The Importance of Quality Control Testing By being diligent in recording and monitoring tests for each laminated structure many potential laminate problems can be averted. Read More...
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