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

BASF Rheovis PE 1331 DSX 3121 Associative Thickener

BASF Rheovis PE 1331 DSX 3121 is a hydrophobically modified ethoxylated urethane (HEUR) associative thickener from BASF’s Rheovis® portfolio. It delivers efficient rheology control, excellent sag resistance, and outstanding gloss retention in waterborne architectural coatings and industrial finishes. Compatible with low-VOC formulations, it ensures robust viscosity build and shear-thinning behavior without compromising storage stability or application performance.
  • basf rheovis pe 1331 dsx 3121 associative thickener_a9980ca5
  • basf rheovis pe 1331 dsx 3121 associative thickener_a9980ca5

Features Of BASF Rheovis PE 1331 DSX 3121 Associative Thickener

  1. High-efficiency associative thickening for waterborne systems with excellent rheology control.

  2. Delivers outstanding sag resistance and anti-drip performance in vertical applications.

  3. Provides excellent compatibility with anionic surfactants and common co-thickeners.

  4. Enables low-shear viscosity build-up while maintaining good flow and leveling properties.

  5. Offers robust freeze-thaw stability and long-term storage performance in architectural coatings.

Typical Applications Of BASF Rheovis PE 1331 DSX 3121 Associative Thickener

  1. Interior and exterior architectural paints (latex-based).

  2. Waterborne decorative coatings and wall finishes.

  3. Textured coatings and stucco-like formulations.

  4. Primer and undercoat systems requiring high solids content and low sag.

  5. Industrial maintenance coatings for metal and masonry substrates.

Specifications Of BASF Rheovis PE 1331 DSX 3121 Associative Thickener

Chemical TypeHydrophobically modified ethoxylated urethane (HEUR) associative thickener
Product FormAqueous dispersion
AppearanceOpaque white to off-white liquid
pH (1% aqueous solution)7.0 – 8.5
Active Content (wt%)30.0 – 32.0%
Viscosity (Brookfield RVT, spindle #3, 20 rpm, 25°C)500 – 2,500 mPa·s
Key FeaturesNon-ionic, low-VOC, APEO-free
Primary ApplicationsArchitectural coatings, textured finishes, primers


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