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Non-ionic associative thickener delivering excellent rheology control in waterborne architectural coatings.
Provides outstanding sag resistance and brush/roller application performance without compromising flow and leveling.
Compatible with a broad range of latex polymers, pigments, and common formulation additives.
Stable viscosity retention across varying pH and temperature conditions during storage and application.
Low foaming profile, minimizing the need for additional defoamer loading in final formulations.
Interior and exterior flat and low-sheen wall paints.
Textured decorative coatings and plaster finishes.
Primer-sealers for masonry and drywall substrates.
Water-based acrylic and vinyl-acrylic architectural topcoats.
Ready-mixed decorative coating systems requiring consistent batch-to-batch rheology.
| Chemical Type | Non-ionic associative polyurethane thickener |
| Product Form | Clear to slightly hazy aqueous solution |
| Appearance | Colorless to pale yellow liquid |
| pH (1% aqueous solution) | 6.0–7.5 |
| Active Content | 25–27% w/w |
| Viscosity (Brookfield RV, 25°C, spindle #3, 20 rpm) | 1,500–4,000 mPa·s |
| Primary Applications | Rheology modifier for waterborne architectural coatings |
| Key Benefits | Improved spatter resistance, anti-drip performance, and film build control |
Q1: What type of rheology does L265 provide in architectural coatings?
A: L265 is a hydrophobically modified ethoxylated urethane (HEUR) thickener that delivers balanced pseudoplastic rheology—providing good sag resistance during application while maintaining excellent flow and leveling after brushing or rolling.
Q2: Is L265 compatible with both interior and exterior waterborne architectural paints?
A: Yes, L265 is widely used in both interior and exterior latex-based architectural coatings, including flat, eggshell, satin, and semi-gloss formulations. It performs well across common binder systems such as acrylic, vinyl acrylic, and styrene-acrylic dispersions.
Q3: How should L265 be incorporated into a coating formulation?
A: L265 is typically added during the let-down stage, after pigments and primary thickeners (e.g., associative cellulose or alkaline-swellable polymers). It should be diluted with water or co-solvent prior to addition and mixed under moderate shear to ensure uniform dispersion and optimal performance.
Q4: Does L265 offer resistance to microbial degradation?
A: As a synthetic non-ionic polymer, L265 itself is not susceptible to microbial attack and does not require additional biocides for preservation of the thickener concentrate. However, final formulations still require appropriate in-can preservatives to protect other organic components.
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E-mail: wangxingqiang@ericwchem.com
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