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
Coating Weight
1.0-1.5 lbs/ream
Ethyl Acetate
Polyether Urethane
Colorless to Light Yellow Liquid
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 %
Ethyl Acetate
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
PE, PP, Coex lms, PET, PVDC-coated Substrates, Paper, Nylon, Cellophane, PVC
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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