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UNI-REZ™ 2228

1 of 47 products in this brand
UNI-REZ 2228 polyamide resin is a high viscosity, alcohol soluble type resin for use in flexographic printing. Its high molecular weight and fast solvent release makes it ideal for high speed printing and when high chemical and/or abrasion resistance properties are desired.

Chemical Family: Polyamides

End Uses: Flexography Ink

Compatible Substrates & Surfaces: Nitrocellulose

Features: Abrasion Resistance, Broad Range of Viscosity, Chemical Resistance, Heat Resistance

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Identification & Functionality

Chemical Family
CASE Ingredients Functions
Technologies

Features & Benefits

Product Highlights
  • High viscosity
  • Alcohol soluble
  • Compatibility with nitrocellulose

Applications & Uses

Compatible Substrates & Surfaces
Ink & Toner Type
Applications
  • Excellent crinkle, abrasion, and chemical resistance
  • Excellent gel resistance and fast recovery times
  • Good heat resistance

Properties

Physical Form
Soluble in
Alcohol
Sales Specifications
ValueUnitsTest Method / Conditions
Softening Point (Ring & Ball)105 - 115°CAQCM 003A
Color, 50% in n-Propanolmax. 7GardnerAQCM 002C
Acid Numbermax. 2AQCM 001
Amine Numbermax. 7mg KOH/gAQCM 069A
Solution Viscosity Brookfield, 50% in n-Propanol450 - 760cPAQCM 004
Typical Properties
ValueUnitsTest Method / Conditions
Softening Point (Ring & Ball)113.0°CAQCM 003A
Color, 50% in n-Propanol6.0GardnerAQCM 002C
Acid Number0.6mg KOH/gAQCM 001
Amine Number3.6mg KOH/gAQCM 069A
Solution Viscosity Brookfield, 50% in n-Propanol560.0cPAQCM 004
Solution Viscosity Brookfield, 40% in n-Propanol, 25°C195.0cPAQCM 004
Zahn cup #2 elution time, 40% in n-Propanol, 25°C66.0secAQCM 145
Viscosity Brookfield at 160°C1465.0cpsAQCM 004
Color, 40% in n-Propanol5 +GardnerAQCM 002A
Solids in Haze Point22.1%ADVM 552
Ethanol Tolerance, 20 % NV Ethanol Solution81.0%ADVM 552

Packaging & Availability

Packaging
  • UNI-REZ 2228 is a granulated resin, packaged in multiwall paper bags, 50 lbs

Storage & Handling

Storage

To be stored in full, closed containers kept in a cool, dry area. Granulated forms of resin are prone to slow oxidation which may result in darkening and/or have an adverse effect on solubility after prolonged storage.