Liquid Associative Rheology Modifier Thixotropic Agent For Full Water-based Systems

Anjeka 4425 is a liquid associative rheology modifier specially developed for full water-based systems, APEO-free and low VOC. It builds a reversible rheological network via intermolecular hydrogen bonds to precisely control base viscosity in cans, long-term inhibit pigment and filler sedimentation, and greatly improve anti-sagging performance during application. Its rheological property is not affected by system pH range, without damaging film gloss and transparency, suitable for the development of all types of waterborne coating formulas.

Chemical Composition: Polyurea-modified polyurethane solution

Note: The data provided in this datasheet are typical values only, not product technical specifications.

Temperature sensitive, store under dry conditions. Slight turbidity may occur during storage, which will not affect rheological performance.

When added under dispersion temperature no higher than 50°C, its effectiveness remains unchanged. Storage period is recommended not to exceed 24 months.

• Water-based wood & furniture coatings: Clear varnish, solid primer, matte topcoat, outdoor weather-resistant wood coatings
• Architectural waterborne coatings: Interior latex paint, exterior weather-resistant coatings, textured sand coatings, putty paste

Urea segments on molecular chains form reversible hydrogen bond networks with waterborne resin emulsions and pigment particles, presenting typical pseudoplastic rheological behavior:

• Low shear storage status: High viscosity locks powder to prevent sedimentation;
• High shear construction status: Viscosity drops rapidly for smooth spraying/brushing without stringing;
• After shear force disappears: Consistency recovers quickly to avoid sagging under heavy film build.

Thanks to its excellent rheological performance, this additive may cause sharp viscosity rise and hinder subsequent processing. Pre-dilution is recommended in such cases. It features high viscosity at low temperature, which can be effectively reduced by pre-dilution. The storage stability of diluted solution needs separate testing case by case.

• 0.2%-0.5% (as supplied) for anti-sedimentation only
• 0.5%-1% (as supplied) for anti-sagging performance

The above are empirical dosages; optimal addition amount shall be confirmed via a series of tests.

Add this additive to coating systems under medium shear agitation to ensure uniform and rapid dispersion.

Strict temperature control is not required. It can be added at grinding stage, or post-added for viscosity adjustment.

If compatible with the system, obvious rheology improvement will be observed, depending on time and polarity. Rheological performance evaluation is generally carried out 2-4 hours after mixing.

• 25kg internally coated iron drum
• 180kg ring plastic drum

Our service:

We are building a new large-scale production base strategically located in Hubei Province, with an annual capacity

of 6,000 tonnes.

The interface additives project was officially established in the Songzi Chemical Park in November 2022.

Benefits to our customers and partners:

Stable large-scale production with enhanced quality control

Lower unit production cost

Collaboration Opportunities:

Contract manufacturing

OEM / ODM partnerships