What: FREE Webinar
Where: Online
When: On Demand until September 14, 2018

Improving Pigment Stability and Sag Resistance with a New Highly Psuedoplastic HEUR

Hydrophobic ethoxylated urethane (HEUR) thickeners are well known for their ability to impart a superior application feel to architectural coatings with excellent leveling, film build and spatter resistance. This is often considered contradictory to high sag resistance and antisettling. The new chemistry discussed has a strong shear thinning rheology profile that builds rheology at shear rates well below those measured by a Brookfield Viscometer and additionally contributes to a higher G' (storage modulus). Through impacting only the low-shear viscosity, this HEUR can ensure good in-can appearance and tool load, avoid sedimentation and syneresis and improve brushability. Additionally the chemistry has a strong shear thinning behavior, allowing great sprayablility and minimal impact on flow and leveling especially compared to competitive chemistries like HEC and ASE. Super low-shear rheology measurements and oscillatory rheology methods for determining the viscoelasticstic behavior are used to quantify the application changes observed in formulated examples.

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