Introduction

HIRESOL grades(80, 85, 500, 370, 180, 200, 1800 and 2000)are Nonionic Urethane associative thickeners(HEUR) designed for thickening of water base coatings.

HIRESOL 80, 500, 180, 200, 1800 and 2000 free of solvent are suitable to manufacturing of low VOC water based paints and other coatings and they provide the most versatile means of formulating to desired film build, flow and high shear viscosity to prevent the roll spatter in water based paints. Thickening mechanism of HIRESOL HEUR Thickeners is due to an interaction of the thickener with other hydrophobic surfaces.

Thus, the more hydrophobic and the finer the particles of latex polymers, the more efficient the thickener will be. Therefore, HIRESOL 1800 and 2000 are the most efficient thickening with fine particle size Acrylic binder and Styrene-Acrylic copolymer binder paints. The main thickening mechanism of HIRESOL HEUR Thickeners is the association between thickener and binder/pigment colloid particles. Thus, associative network minimized volume restricted flocculation that is a typical phenomenon of non-associative thickener system. Reducing of volume restricted flocculation imparts the gloss development and the film integrity to the emulsion paints. The Main Advantages of HIRESOL HEUR Thickeners are the following:

Advantages

• Excellent paint flow and leveling.
• High gloss development.
• Because of solvent free, designed for low VOC paints(HIRESOL 80, 500, 180, 200, 1800 and 2000).
• Low odor
• Low formation of bubbles when manufacturing.
• Excellent viscosity stability in long term storage.
• Provides anti-settling properties and reduces syneresis (Case of medium to high shear grade).
• High film build and better applied hiding.
• Excellent spatter resistance.
• Resistance to microbes and its enzymes.
• Because of low viscosity, easy to handle.

Physical Properties

Rheological Properties

Formulation Guide

• As mentioned, when HIRESOL HEUR Thickeners are applied to hydrophobic (latex Ex. Acrylic emulsions, Styrene-Acrylic copolymer emulsion) based paints, it's more effective for thickening of the paints. And with fine particle size (latex higher hydrophobic surface) HIRESOL 1800 and 2000 are more effective.
• Higher volume solids of the paint thickening with HIRESOL HEUR Thickeners provides the more effective thickening because of the more sites for association.
• Generally, being adding of surfactant reduces the thickening effect. The higher the HLB of the surfactant used, the higher the reduction of the viscosity of the paint will be.
• Coalescing agent of Texanol has little or no effect on KU viscosity of an associative thickener paints. EG and PG used as wet edge agent in emulsion paints have the least effect, while Butyl Carbitol have the greatest effect to the viscosity of the paints.
• The emulsion paints thickened with HIRESOL 1800 and 2000 associative thickener show excellent paint flow and higher high-shear viscosity. To design the rheology balance of the emulsion (paints In-can viscosity, sagresistance), combination with low shear of HIRESOL (thickener HIRESOL 85, 80, 370) or with HISOL 308 is recommended.
• Instead of combination with the high shear HIRESOL (thickeners HIRESOL 1800, 2000) and the low shear HIRESOL (thickeners HIRESOL 85, 80, 370), Medium shear thickener HIRESOL 500 is recommended to minimize the syneresis of paints.

Sheen Paints based on Acrylic emulsion binder

Sheen Paints thickened with Acrylic emulsion binder

Sheen paints based on Acrylic emulsion binder

Sheen paints based on Acrylic emulsion binder

Semi-Gloss paints based on Acrylic emulsion binder

Semi-Gloss paints based on Acrylic emulsion binder

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