Features Of Arkema COADIS 790 Polymer Dispersants
Block Copolymer Technology - Precise pigment-surface interaction
Universal Pigment Compatibility - Effective for organic and inorganic pigments
Clean Formulation - PEO-free, solvent-free, and VOC-compliant
Rheology Control - Maintains optimal viscosity in pigment concentrates
Storage Stability - Prevents hard settling in long-term storage
Typical Applications Of Arkema COADIS 790 Polymer Dispersants
Facade Coatings - Weather-resistant exterior wall finishes
Decorative Paints - Interior wall coating systems
Wood Protection - Exterior wood coating formulations
Concrete Finishes - Architectural concrete coatings
Textured Coatings - Decorative textured wall finishes
Specifications Of Arkema COADIS 790 Polymer Dispersants
Chemical Type | Block copolymer with pigment anchorage groups. |
Surfactant Type | Non-ionic. |
Appearance | Clear liquid. |
Solid Content (%) | 40%. |
Active Content (%) | 40%. |
pH | 6.5. |
Solvent | Water. |
Key Benefits | Wetting, dispersing, anti-settling, syneresis resistance, gloss improvement. |
Applications | Water-based industrial coatings, architectural coatings, inks, pigment concentrates. |
Sustainability | APEO-free, heavy metal-free, solvent-free. |
Arkema COADIS 790 Polymer Dispersants – Frequently Asked Questions (FAQ)
Q1: What types of pigments and fillers is COADIS 790 especially effective for dispersing?
A: COADIS 790 is particularly effective for stabilizing high-surface-area inorganic pigments (e.g., titanium dioxide, iron oxides) and functional fillers such as silica, calcium carbonate, and clay in aqueous systems. Its polymeric architecture provides strong anchoring and steric stabilization, helping to prevent re-agglomeration during storage and processing.
Q2: How does COADIS 790 differ from traditional low-MW surfactant dispersants?
A: Unlike conventional small-molecule surfactants, COADIS 790 is a high-performance polymeric dispersant offering superior colloidal stability, reduced sensitivity to electrolytes and pH shifts, and improved long-term storage stability. Its polymeric backbone enables durable adsorption and enhanced resistance to desorption under shear or dilution.
Q3: Is COADIS 790 suitable for use in low-VOC or zero-VOC formulations?
A: Yes — COADIS 790 is supplied as a liquid aqueous dispersion with negligible VOC content, making it well-suited for environmentally compliant, low-VOC architectural coatings, industrial waterborne paints, and other sustainable formulation strategies.
Q4: What is the typical dosage range for COADIS 790 in pigment grinding applications?
A: Dosage depends on pigment type, surface area, and target viscosity/stability, but COADIS 790 is typically used at low concentrations — generally ranging from 0.1% to 2% by weight relative to pigment solids. Optimization is recommended via lab-scale dispersion trials under representative process conditions.
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