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COAPUR™ 4820

Solvent free liquid polyurethane thickener
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Product overview
Coapur™ 4820 is a solvent and Alkyl Phenol Ethoxylate (APE) free polyurethane thickener designed for all types of water based formulations, especially the solvent free formulations. Coapur™ 4820 can be used sole or in combination either with other polyurethane thickeners or with other types of rheology modifiers such as acrylic or cellulosic thickeners. Coapur™ 4820 provides excellent coating properties due to its high associative effectiveness with every kind of binder. Coapur™ 4820 increases specifically the viscosities at medium and high shear rates in order to improve tool load, film build, levelling and brush drag. Thanks to its exclusive rheological features, Coapur™ 4820 also prevents from settling and sagging tendency in low PVC formulations.
Geographic availability
  • Asia Pacific
Appearance Viscous whitish liquid
Solid Content (%) 33.50
Active Content (%) 20
pH 7
Solvent Water
Brookfield viscosity (mPa.s) 6000
Specific gravity 1.03
Solvent-free
APEO free
Heavy metal free
Bacteria resistance
Non associative
Self association
Associative
Low shear contribution
Mid shear contribution
High shear contribution
PVC Low
PVC Mid
PVC High
Comptability
Post addition
Ready to use
Easy handling
Cost in use
Color acceptance
Viscosity stability
Antisettling
Syneresis resistance
In-can appearance
Brushability
Rollability
Sag resistance
Gloss
Transparency
Hiding power opacity
Rub out
Stain resistance
Chemical resistance
Anticorrosion