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

BASF Rheovis PU 1191 Associative Polyurethane Thickener

BASF Rheovis PU 1191 is an associative polyurethane (APU) thickener from the Rheovis series, delivering outstanding rheology control in waterborne coatings. It imparts high mid-shear viscosity, excellent flow/leveling balance, and superior spatter resistance. Compatible with acrylic, styrene-acrylic, and vinyl acetate systems, it ensures low foam, good gloss retention, and robust freeze-thaw stability—ideal for architectural and industrial paints.
  • basf rheovis pu 1191 associative polyurethane thickener_88a8cd05
  • basf rheovis pu 1191 associative polyurethane thickener_88a8cd05

Features Of BASF Rheovis PU 1191 Associative Polyurethane Thickener

  1. Delivers excellent high-shear viscosity control for outstanding application performance in roller and spray applications.

  2. Provides superior sag resistance and leveling balance in architectural and industrial coatings.

  3. Offers robust compatibility with anionic, nonionic, and amphoteric surfactants as well as common co-solvents.

  4. Enables low foaming characteristics and good shear recovery after mechanical stress.

  5. Delivers long-term viscosity stability across a broad pH range (6.0–10.0) without requiring pH adjustment.

Typical Applications Of BASF Rheovis PU 1191 Associative Polyurethane Thickener

  1. Waterborne architectural interior and exterior paints.

  2. Industrial maintenance coatings including primers and topcoats.

  3. Wood and furniture coatings requiring balanced flow and anti-drip performance.

  4. Low-VOC and zero-VOC decorative and protective coatings.

  5. Textured coatings and elastic facade systems.

Specifications Of BASF Rheovis PU 1191 Associative Polyurethane Thickener

Chemical TypeAssociative polyurethane (HEUR)
Product FormClear to slightly hazy aqueous solution
AppearanceColorless to pale yellow liquid
pH (1% aqueous solution)7.0 – 8.5
Active Content30.0 ± 1.0 wt.%
Density (20 °C)1.02 – 1.06 g/cm³
Viscosity (Brookfield RVT, spindle #3, 20 rpm, 25 °C)500 – 1500 mPa·s
Primary ApplicationsWaterborne architectural and industrial coatings


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