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High-efficiency rheology modifier providing excellent viscosity build and shear-thinning behavior.
Carboxylated acrylic polymer offering robust thickening performance in water-based systems.
Compatible with a broad range of surfactants, co-solvents, and electrolytes.
Delivers outstanding storage stability and freeze-thaw resistance.
Enables low-odor, low-VOC formulations suitable for eco-conscious applications.
Architectural paints and coatings (interior/exterior emulsion paints).
Industrial maintenance coatings and protective primers.
Water-based adhesives and construction sealants.
Tile grouts and cementitious repair mortars.
Textile printing pastes and pigment dispersion systems.
| Chemical Type | Carboxylated acrylic copolymer |
| Product Form | Aqueous dispersion (non-ionic, anionic-stabilized) |
| Appearance | Opaque white to off-white liquid |
| pH (1% aqueous solution) | 3.0 – 4.5 |
| Solids Content (wt%) | 29.0 – 31.0% |
| Viscosity (Brookfield RVT, spindle #3, 20 rpm, 25°C) | 1,500 – 4,000 cP |
| Primary Applications | Water-based architectural and industrial coatings, construction chemicals |
| Key Features | Rheology control, compatibility, stability, low VOC contribution |
Q1: What types of formulations is Coapur 6050 typically used in?
A: Coapur 6050 is primarily designed for waterborne architectural coatings, industrial maintenance paints, and construction mortars where rheology control, sag resistance, and brush/roller application performance are critical. It performs well in both acrylic and styrene-acrylic dispersions.
Q2: How does Coapur 6050 differ from associative thickeners like HEUR or HEC?
A: As a carboxylated polyacrylate, Coapur 6050 functions as a pseudo-plastic, anionic thickener that provides strong viscosity build at low shear and good flow/leveling at high shear. Unlike non-ionic associative thickeners, it offers enhanced compatibility with ionic additives and improved tolerance to freeze-thaw cycling in many systems.
Q3: Is Coapur 6050 sensitive to pH, and how should it be incorporated?
A: Yes — optimal thickening performance is achieved in neutral to slightly alkaline conditions (pH ≥ 7.5). It is recommended to pre-neutralize with ammonia or amine-based neutralizers prior to addition, and to incorporate the neutralized solution under moderate agitation during the let-down stage for uniform dispersion.
Q4: What is the typical dosage range for effective viscosity modification?
A: Dosage depends on formulation requirements and target viscosity, but Coapur 6050 is generally effective at low concentrations — typically ranging from 0.1% to 2.0% by weight of the total formulation — with most architectural coatings using between 0.3% and 1.2%.
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E-mail: wangxingqiang@ericwchem.com
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