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ADCOTE™ 37-220
ADCOTE™ 37-220 is a water-based dispersion of an ionomer resin used as a heat seal coating for food and medical packaging applications.
Fulfilled By ChemPoint
- Manufacturer: Dow
- Product Line: Dow Laminating Adhesives
- Product: ADCOTE™
- Industries: Adhesives | Coatings
- Authorized Countries: Canada | United States
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Overview
ADCOTE™ 37-220 is a VOC-free, water-based dispersion of the SURLYN™ ionomer. It is used as a heat seal coating applied to paper or foil at a coating weight of 0.5–5.0 lbs per ream. Coatings of ADCOTE™ 37-220 can be subsequently heat sealed to secondary substrates such as PET, foil, paper, polyolefins, nylon, and cellophane to form peelable adhesive bonds. ADCOTE™ 37-220 offers fast heat seal bond strength development, a low activation temperature, and a high hot tack. ADCOTE™ 37-220 also offers outstanding moisture and grease resistance and is ideal for packaging foods containing water, grease, or oils. Typical applications for ADCOTE™ 37-220 include its use as an adhesive for lidding on rigid food packaging containing greasy or oily foods, an adhesive for creating paper pouches and aseptic packaging, and a primer for foils.
Specifications
Solids (%): 31
Viscosity range (cPs): 250–1200
pH: 9.8
Gallon weight (lb): 8.2
Carrier: Water
Wet appearance: White liquid
Dry appearance: Colorless film
Minimum block temperature, °F (°C): 180 (66)
Minimum heat seal temperature, °F (°C): 250 (93)
Freeze–thaw stability: None; protect from freezing
Shelf life, unopened (days): 270, if unopened containers are stored in a cool, dry place
Features & Benefits
Aqueous dispersion
Excellent adhesion to metal and papers
Forms strong bonds
Emits no VOCs
Provides high hot tack and develops fast heat sealing bonds
Low adhesive activation temperature
System is easily modified for broad application usage
Adhesive bonds have high resistance to moisture and grease
Problems Solved
Packaging bonds that are too strong to be peelable
Failure of heat sealed bonds or packaging upon exposure to food products that are high in moisture or grease
Adhesion failure of heat seal lacquers at extreme pH
Strict VOC regulations related to adhesive use
Applications
Food packaging
Coating and adhesive compounding
Foil primers
Medical packaging
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