English
Español
tiếng việt
русский
High-performance hydroxyethyl cellulose (HEC) polymer delivering excellent water retention and rheology control in waterborne systems.
Non-ionic, biodegradable thickener compatible with a broad range of surfactants, electrolytes, and co-solvents.
Provides outstanding sag resistance and brush/roller application properties in architectural coatings.
Offers rapid hydration and viscosity development without requiring pH adjustment or high-shear dispersion.
Delivers consistent batch-to-batch performance and long-term storage stability in formulated products.
Architectural interior and exterior latex paints.
Water-based industrial maintenance coatings.
Tile adhesives and cementitious grouts.
Water-based wood stains and clear finishes.
Textile printing pastes and paper coating formulations.
| 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, grouts |
| Key Features | Non-ionic, high water retention, shear-thinning rheology |
| Benefits | Improved open time, reduced spatter, enhanced leveling and sag resistance |
| pH Range (1% aqueous solution) | 6.0–8.5 |
| Solubility | Readily dispersible and soluble in cold water |
Q1: What is the primary function of NATROSOL 250R in waterborne formulations?
A: NATROSOL 250R is a hydroxyethyl cellulose (HEC) thickener designed to provide efficient rheology control—particularly high low-shear viscosity and excellent sag resistance—in water-based paints, coatings, adhesives, and construction mortars. It delivers pseudoplastic flow behavior and good compatibility with common surfactants and co-thickeners.
Q2: How does NATROSOL 250R differ from other HEC grades like 250HHX or 250M?
A: NATROSOL 250R is specifically engineered for balanced performance in architectural and industrial waterborne systems, offering improved water retention, enhanced film formation, and greater tolerance to electrolytes compared to standard HEC grades. Its molecular weight and substitution profile are optimized for easier dispersion and more consistent viscosity development without excessive gel lumps.
Q3: Is NATROSOL 250R compatible with biocides and defoamers commonly used in latex paints?
A: Yes, NATROSOL 250R demonstrates broad compatibility with isothiazolinone- and benzisothiazole-based biocides, as well as silicone and mineral oil-based defoamers. However, optimal performance requires careful addition sequence and adequate mixing time—typically dispersing the HEC before introducing strongly ionic or hydrophobic additives.
Q4: What is the recommended method for incorporating NATROSOL 250R into aqueous systems?
A: For best results, pre-disperse NATROSOL 250R in water containing a small amount of glycol or surfactant to inhibit agglomeration, then mix under moderate to high shear until fully hydrated. Alternatively, it can be added directly to the millbase using a high-shear mixer—avoid adding dry powder directly to low-viscosity, high-water-activity phases without pre-wetting.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
