CLIQFLOW 661 VR is a VOC compliant tin-free polyurethane thickener for aqueous clear and pigmented systems. The associative thickener increases both low and high shear viscosity and provides a shear thinning flow behaviour to aqueous systems.

CLiQFLOW 661 VR improves anti-settling behaviour, sag resistance and brush drag of aqueous systems; it will also improve the levelling properties resulting in better gloss and a more uniform paint film after application.

CLiQFLOW 661 VR associates with pigments as well as with binders in an aqueous environment. The association with pigments and extenders makes the product particularly suitable for pigment concentrates and less dependant on other coatings ingredients.