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Non-ionic, high-efficiency associative thickener for water-based systems.
Provides excellent rheology control and sag resistance in vertical applications.
Compatible with a broad range of anionic and non-ionic surfactants.
Delivers outstanding shear-thinning behavior and low-shear viscosity enhancement.
Stable across pH range 4–12 and tolerant to moderate levels of electrolytes.
Architectural coatings including interior and exterior latex paints.
Industrial maintenance coatings and protective finishes.
Water-based adhesives and construction sealants.
Tile grouts and cementitious repair mortars.
Textile printing pastes and pigment dispersion systems.
| Chemical Type | Non-ionic hydrophobically modified ethoxylated urethane (HEUR) |
| Product Form | Off-white to light amber viscous liquid |
| Appearance | Homogeneous, free-flowing liquid |
| Active Content | 30.0 ± 1.5 wt% |
| pH (1% aqueous solution) | 6.5 – 8.5 |
| Viscosity (Brookfield DV-II+ @ 6 rpm, 25°C) | 3,000 – 8,000 cP |
| Solubility | Water-miscible; forms clear to slightly hazy solutions |
| Storage Stability | 12 months at 5–30°C in unopened original container |
Q1: What type of rheology does SN-THICKENER 621N provide in aqueous systems?
A: SN-THICKENER 621N is a non-ionic associative thickener that delivers shear-thinning behavior and good low-shear viscosity build, supporting improved suspension stability and application performance in water-based formulations.
Q2: Is SN-THICKENER 621N compatible with common surfactants and electrolytes found in industrial cleaners or coatings?
A: Yes — it exhibits broad compatibility with anionic, non-ionic, and amphoteric surfactants, and maintains performance across moderate electrolyte concentrations, making it suitable for demanding industrial cleaning and protective coating applications.
Q3: How should SN-THICKENER 621N be incorporated into a formulation to ensure optimal thickening efficiency?
A: It is typically added during the post-addition stage under moderate agitation. Pre-dilution in water or co-solvent is recommended to avoid localized gelling. Final viscosity development may require brief aging (e.g., several hours) to reach equilibrium.
Q4: Does SN-THICKENER 621N offer resistance to microbial degradation?
A: As a synthetic non-ionic polymer, SN-THICKENER 621N itself is not a nutrient source for microorganisms and does not require additional biocides solely for its own stabilization — however, overall formulation preservation must still be evaluated separately based on system composition and storage conditions.
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E-mail: wangxingqiang@ericwchem.com
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