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.
Drawing on its unique expertise in materials science, Arkema offers a portfolio of best-in-class technologies to meet the growing demand for new innovative, high performance, sustainable materials. At the heart of this portfolio is Arkema Rheology and Specialty Additives. These are not "simple" additives, but truly advanced solutions based on extensive expertise in rheology, dispersion and texture of complex formulations. For more than 50 years and thanks to strong partnerships, these additives have been adding value to markets such as paints, adhesives, mineral processing, personal and home care products and many others.
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