ADCOTE 331

Adcote™ 331 adhesive is a single-component, isocyanate-terminated, polyether urethane adhesive, which requires moisture to cure. Adcote 331 adhesive adheres to a wide variety of substrates including cellophane, treated polyolefins, polyester, polyamides, paper, PVDC-coated materials, and the treated heat sealable layers of coextrusions. The cure rate of laminations made with Adcote 331 adhesive is dependent on the temperature and relative humidity of the storage or holding area.

The principal uses for Adcote 331 adhesive are snack food packaging, bottle label laminations, meat and cheese packaging, dry food packaging, and non-foil condiment packaging.

Features & Benefits

Adcote™ 331 adhesive produces optical clarity, high bond strength, and a high level of heat and chemical resistance. This adhesive is intended for use in non-critical and semi-critical applications.

Key Properties

Application Method
Gravure
Coreactant
None
Coating Weight
1.0-1.5 lbs/ream
Carrier
Ethyl Acetate
Chemistry
Polyether Urethane
Color
Colorless to Light Yellow Liquid
Density
8.8 lbs/gallon
Recommended Diluent
Ethyl Acetate, Methyl Ethyl Ketone, Toluene
Drying Web Temperature
150-180 °F
Key Performance Benefits
high clarity, low nip
Shelf Life
360 days
Applied Solids
25-35 %
Supplied Solids
75 %
Solvent
Ethyl Acetate
Thinner
Ethyl Acetate, Methyl Ethyl Ketone, Toluene
Cure Time
5-7 days @ 70 °F
Nip Temperature
130-170 °F
Nominal Application Temperature
Room Temperature
Post Process Time
4-8 hours @ 70 °F
Substrates
PE, PP, Coex lms, PET, PVDC-coated Substrates, Paper, Nylon, Cellophane, PVC
Viscosity
4,500 cPs @ 25 °C

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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