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

Akzonobel L31 Architectural Coating Thickener

AkzoNobel L31 Architectural Coating Thickener is a hydrophobically modified ethoxylated urethane (HEUR) rheology modifier designed for waterborne architectural paints. It delivers excellent sag resistance, spatter control, and brush/roller drag reduction while maintaining good flow and leveling. Compatible with latex systems, it ensures stable viscosity across shear rates and enhances storage stability without compromising tint strength or color development.
  • akzonobel l31 architectural coating thickener_6f8b24db
  • akzonobel l31 architectural coating thickener_6f8b24db

Features Of Akzonobel L31 Architectural Coating Thickener

  1. High-efficiency rheology modifier delivering excellent sag resistance in low-shear and high-shear conditions.

  2. Compatible with both acrylic and vinyl-acrylic architectural emulsions, including PVA-based systems.

  3. Provides outstanding storage stability and freeze-thaw resistance without compromising viscosity recovery.

  4. Enables low-foam performance during high-speed mixing and application, supporting efficient production processes.

  5. Offers excellent water retention and brush/roller drag control for superior application properties.

Typical Applications Of Akzonobel L31 Architectural Coating Thickener

  1. Interior and exterior latex wall paints.

  2. Low-VOC and zero-VOC decorative coatings.

  3. Textured finishes and stipple coatings.

  4. Primer-sealers and undercoats for residential and commercial use.

  5. Ready-mixed decorative coatings requiring consistent viscosity over shelf life.

Specifications Of Akzonobel L31 Architectural Coating Thickener

Chemical TypeHydrophobically modified ethoxylated urethane (HEUR)
Product FormLiquid concentrate
AppearanceClear to slightly hazy, light amber liquid
pH (1% aqueous solution)6.5 – 7.5
Active Content30 – 32 wt%
Viscosity (25°C, Brookfield RVT, spindle #3, 20 rpm)1,500 – 3,500 mPa·s
Primary ApplicationsRheology control in waterborne architectural coatings
Key BenefitsSag resistance, spatter control, leveling enhancement, and viscosity stability


Akzonobel L31 Architectural Coating Thickener – Frequently Asked Questions (FAQ)

Q1: What is the primary function of AkzoNobel L31 in architectural coatings?

A: AkzoNobel L31 is a rheology modifier designed to provide efficient thickening and sag resistance in water-based architectural coatings, particularly enhancing viscosity at low shear while maintaining good flow and leveling at high shear.


Q2: Is L31 compatible with common architectural coating formulations?

A: Yes, L31 demonstrates broad compatibility with acrylic, vinyl-acrylic, and styrene-acrylic emulsions, as well as typical co-thickeners, biocides, and pigments used in interior and exterior wall paints — though compatibility testing in the final formulation is always recommended.


Q3: How should L31 be incorporated into a coating batch?

A: L31 is typically added during the let-down stage, either pre-diluted in water or directly dispersed under moderate agitation. It is not recommended for high-shear dispersion in the grind phase, as this may compromise its performance efficiency.


Q4: Does L31 offer any advantages over traditional associative thickeners?

A: Compared to many standard HEUR thickeners, L31 delivers improved water sensitivity control and enhanced compatibility with surfactants and coalescing agents, contributing to better film formation and reduced roller spatter in application.



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