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DeCAL 4288 is a low molecular weight carboxylated acrylic copolymer that can carry very high levels of pigment, providing maximum color development properties at these loadings. To obtain the full benefits, it's essential to use the highest possible pigment binder ratios and the highest possible pigment loading of DeCAL 4288. It's common to prepare a neutralized solution using either ammonia or monoethanolamine in formulations where slower drying or better resolubility is required.

Functions: Binder & Resin, Gloss Enhancer

Compatible Substrates & Surfaces: Paper

Compatible Polymers & Resins: Polyesters, Styrene Acrylics

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Identification & Functionality

CASE Ingredients Functions
Technologies

Features & Benefits

Crosslinking

DeCAL 4288 is a carboxylated acrylic polymer therefore improvements in water and solvent resistance can be achieved via crosslinking through the free carboxyl groups in the polymer. Typical crosslinkers include Zirconium compounds, UF and MF resins and carbodiimides.

Applications & Uses

Compatible Polymers & Resins
Compatible Substrates & Surfaces
Applications
  • DeCAL 4288 should be used as the sole resin component of pigment grinding bases that are subsequently to be used as the basis for water-based flexographic inks.
  • Bases prepared on DeCAL 4288 are free flowing systems at 60-70 seconds on a B4 Ford Cup at 20ºC. Optimum results will be achieved with the most efficient grinding equipment. DeCAL 4288 is also suitable for use as a vehicle in the let-down stage and provides excellent rub resistance and transfer properties. DeCAL 4288 is compatible with virtually all pigments suitable for water applications.
  • DeCAL 4288 is compatible with most resins used in waterbased systems. This includes all acrylics, vinyl acetate, stirene acrylic and polyester resins. Some maleics and high acid value resins can be more difficult.
  • DeCAL 4288 may be used as sole ink binder where very good resolubility is required or simply as a modifier to improve the resolubility of more hydrophobic inks.
  • DeCAL 4288 is also suited for use as binders and modifiers for other systems such as waterbased paints and coatings for use in the art and craft, and paper coatings industries. The polymer can act as a gloss promoter in waterbased paint systems, whilst also being suitable for use in temporary protective and removable coating applications.

Properties

Physical Form
Appearance
White emulsion
Typical Properties
ValueUnitsTest Method / Conditions
pH3.5——
Solid Content41.0%—
Viscosity (at 25°C, 100 rpm)70.0mPa.sBrookfield RVT
Density (at 25°C)1.07g/cm³—
Acid Value130.0mg KOH/g—
Minimum Film Forming Temperature15.0°C—
Glass Transition Temperature28.0ºC—
Particle Size110.0nm—

Packaging & Availability

Country Availability
Regional Availability
  • Canada
  • USA