BYK® -7420 ES

BYK® -7420 ES by BYK is a solution of modified urea. Acts as liquid rheology additive for medium and low-polarity aqueous and water-reducible coating systems. After being stirred into the coating system, the additive generates a three-dimensional network structure. The resulting thixotropic flow behavior is highly suited for preventing sedimentation and syneresis and increasing the anti-sagging properties without impairing leveling. BYK® -7420 ES is preferably used as an anti-settling additive to produce aqueous pigment, filler and matting agent concentrates. The additive’s excellent shear thinning effect is advantageous for dosing because of its low viscosity. Recommended dosage is 0.3-1.5% and 0.3-3% of additive based upon total formulation to prevent settling and to prevent sagging respectively, based upon total formulation.