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High-shear rheology control for excellent sag resistance and brush/roller application performance.
Outstanding water retention to minimize premature drying and improve open time in cementitious and gypsum-based systems.
Low foaming profile, supporting stable formulation in low-VOC and high-solids waterborne coatings.
Good compatibility with common anionic and nonionic surfactants, dispersants, and biocides.
Consistent batch-to-batch performance enabled by Ashland’s controlled etherification process.
Interior and exterior architectural paints and coatings.
Cement-based tile adhesives and grouts.
Gypsum-based joint compounds and plaster finishes.
Waterborne wood stains and varnishes.
Latex-based caulks and sealants.
| Chemical Type | Hydroxyethyl cellulose (HEC) |
| Product Form | Free-flowing white to off-white powder |
| Appearance | Free-flowing granular powder |
| Primary Applications | Waterborne architectural coatings, tile adhesives, joint compounds |
| Key Features | Non-ionic thickener, water-soluble, thermally reversible gelation |
| Benefits | Improved viscosity build, enhanced water retention, low foam generation |
| pH Range (1% aqueous solution) | 6.0–8.5 |
| Solubility | Readily dispersible in cold water; fully hydrates upon aging |
Q1: What is the primary function of NATROSOL HE 3KB in waterborne formulations?
A: NATROSOL HE 3KB is a hydroxyethyl cellulose (HEC) thickener designed to provide efficient rheology control—particularly pseudoplastic flow behavior—in water-based systems. It enhances viscosity, improves sag resistance, and supports uniform pigment suspension without significantly affecting gloss or clarity.
Q2: How does NATROSOL HE 3KB differ from standard HEC thickeners in terms of performance?
A: HE 3KB is specifically engineered for enhanced water retention, improved compatibility with associative thickeners, and superior shear-thinning response in low-to-medium solids waterborne coatings and architectural paints. Its modified molecular structure delivers more consistent viscosity build and better spatter resistance compared to conventional HEC grades.
Q3: Is NATROSOL HE 3KB compatible with common biocides and surfactants used in waterborne coatings?
A: Yes, NATROSOL HE 3KB demonstrates broad compatibility with nonionic and anionic surfactants, as well as widely used isothiazolinone- and benzisothiazolinone-based biocides. However, optimal stability should be confirmed through formulation-specific compatibility testing under intended storage and processing conditions.
Q4: What is the recommended method for incorporating NATROSOL HE 3KB into a waterborne system?
A: For best results, pre-disperse HE 3KB in water using high-shear mixing or gradual addition under agitation to avoid agglomeration. Hydration time may vary depending on temperature and pH, but full viscosity development typically occurs within 15–60 minutes after complete dispersion and dissolution.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
