Name: HEUR Thickener RM-2020
Brand: Coatingsink
SKU: heur-thickener-rm2020
Availability: InStock

Question 1

What advantages does an associative HEUR thickener offer over cellulosic thickeners like HEC in gloss coatings?

Accepted Answer

HEUR thickeners build viscosity through reversible hydrophobic associations rather than polymer entanglement, yielding better high-shear thinning, improved leveling, and higher 60° gloss compared to HEC or HPMC. Cellulosic thickeners tend to leave brush marks and reduce sheen at application shear rates, whereas RM-2020 recovers structure quickly after application without disrupting film formation.

Question 2

At what stage and addition level should RM-2020 be incorporated into a waterborne formulation?

Accepted Answer

Add RM-2020 during the let-down stage under slow stirring (200–400 rpm) after the pigment grind is complete. Typical dosage is 0.3–1.5% on total formulation weight; adjust final viscosity at the end of compounding. Avoid high-speed dispersion, which causes temporary viscosity loss and may introduce foam.

Question 3

How does binder type affect the performance of RM-2020?

Accepted Answer

RM-2020 is broadly compatible with acrylic, vinyl-acrylic, and styrene-acrylic dispersions. Performance varies with high-surfactant binder systems or unusually anionic/nonionic surfactant packages, which compete for hydrophobic association sites and can reduce thickening efficiency. Bench-scale viscosity trials are recommended whenever the binder or surfactant system changes.

Appearance	Clear to slightly hazy liquid
Active Content	25%
Density (25°C)	1.02 g/ml
pH (as supplied)	6.5–8.0
Viscosity (25°C)	1,500–3,500 mPa·s

HEUR Thickener RM-2020

Specifications

FAQ

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