ADCOTE™ 37-220 is a water based dispersion of an ionomer resin. It is used as a heat seal coating for food and medical packaging applications.
ADCOTE™ 37-220 is a VOC free, water-based dispersion of DuPont's SURLYN™ ionomer. It is used as a heat seal coating and should be 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 form peelable bonds to PET, foil, paper, polyolefins, nylon, and cellophane. ADCOTE™ 37-220 offers fast heat seal bond set up, low activation temperature, and high hot tack. ADCOTE™ 37-220 also offers outstanding moisture and grease resistance and is ideal for packaging difficult products.
Solids: 31%
Viscosity range: 250-1200 cps
pH: 9.8
Gallon Weight: 8.2 lb
Volatile Component: Water
Wet Appearance: White liquid
Dry Appearance: Colorless film
Minimum Block Temperature: 180°F (66°C)
Minimum Heat Seal Temperature: 250°F (93°C)
Freeze-Thaw Stability: None; protect from freezing
Shelf Life: 270 Days (Unopened Containers Stored in Cool Dry Place)
Excellent adhesion to metal and papers
Strong bonds and laminations
Aqueous dispersion
No VOC content
High hot tack
Fast heat seal bond set up
Low activation temperature
Fast heat seal cycles
Easily modified
Broad application use
No volatile amines
Stable pH in storage and use
Moisture and grease resistant
Ideal for packaging difficult products
Bonds that are too strong to be peelable
Failure of heat sealed bonds 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
Heat seal coatings, compounding base, saturants, primer, protective coatings, medical packaging, adhesives, binder
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