Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Ashland NATROSOL 250B TYPE Biostable HEC Waterborne Thickener

Ashland NATROSOL 250B TYPE Biostable HEC Waterborne Thickener is a hydroxyethyl cellulose polymer offering exceptional rheology control thermal stability and biostability in water-based formulations ideal for paints coatings and construction adhesives without microbial degradation concerns.
  • ashland natrosol 250b type biostable hec waterborne thickener_4312d722
  • ashland natrosol 250b type biostable hec waterborne thickener_4312d722

Features Of Ashland NATROSOL 250B TYPE Biostable HEC Waterborne Thickener

  1. Biostable formulation eliminates the need for additional isothiazolinone or formaldehyde-releasing preservatives in waterborne systems.

  2. Delivers excellent mid-shear viscosity building and outstanding sag resistance in architectural coatings and industrial finishes.

  3. Provides superior compatibility with anionic surfactants, pigments, and common co-thickeners including associative HEUR thickeners.

  4. Offers consistent rheology performance across a broad pH range (pH 3–12) and maintains stability under freeze-thaw cycling.

  5. Enables high gloss retention and low spatter during roller and spray application without compromising film integrity.

Typical Applications Of Ashland NATROSOL 250B TYPE Biostable HEC Waterborne Thickener

  1. Architectural interior and exterior flat, eggshell, and satin latex paints.

  2. Waterborne industrial maintenance coatings for metal and concrete substrates.

  3. Low-VOC and zero-VOC decorative wall coatings and primers.

  4. Water-based wood stains and clear finishes requiring non-drip rheology control.

  5. Textile printing pastes and construction adhesives requiring shear-thinning behavior.

Specifications Of Ashland NATROSOL 250B TYPE Biostable HEC Waterborne Thickener

Chemical TypeHydroxyethyl cellulose (HEC), biostable grade
Product FormFree-flowing white to off-white granular powder
AppearanceFree-flowing granules, no visible lumps or discoloration
Primary ApplicationsWaterborne architectural coatings, industrial finishes, adhesives, and specialty dispersions
Key FeaturesNon-ionic, biostable, high molecular weight, cold-water dispersible
BenefitsPreservative-free formulation support, excellent viscosity efficiency, low foaming, good leveling
pH of 1% Aqueous Solution (25°C)6.0 – 8.5
Viscosity (Brookfield RVT, 2% solution, spindle #3, 20 rpm, 25°C)18,000 – 22,000 cP


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