Rheology is one of the quiet determinants of how a paint feels and performs. A formulator needs high viscosity at low shear — so the paint resists sagging and keeps pigments suspended in the can — and lower viscosity at high shear, so it brushes, rolls, or sprays smoothly. Achieving both at once is a balancing act.

Hydrophobically modified alkali-soluble emulsion (HASE) chemistry is designed to manage this balance. HASE monomers build associative thickening networks that respond to shear, delivering strong low-shear suspension and sag resistance alongside good high-shear flow and leveling.

Swash's Ethomer™ HM Series HASE Monomers are engineered for advanced water-based rheology control. They provide high-efficiency thickening with an excellent low- and high-shear balance, superior flow, leveling, and anti-sag performance, strong pigment suspension, and broad compatibility with acrylic and hybrid systems — all designed for low-VOC, environmentally compliant formulations.

For modern waterborne paints, the right rheology monomer is often the difference between a formulation that simply works and one that applies beautifully.

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