Raykem supplies polymeric, anionic, and non-ionic dispersants suited to water-based and solvent-based systems used by paint manufacturers across UAE and Saudi Arabia.
Technical specifications
| PARAMETER | SPECIFICATION |
|---|---|
| Types Available | Polymeric, anionic, non-ionic, cationic |
| For Water-Based Systems | Sodium polyacrylate, AMPS-based copolymers, polycarboxylate types |
| For Solvent-Based Systems | Polyurethane-based, hyperdispersants (acrylic block copolymer) |
| For Inorganic Pigments (TiO2, iron oxide) | Anionic polyacrylate or AMPS-copolymer — 0.5–2.0% on pigment |
| For Organic Pigments | Polymeric hyperdispersant — 5–15% on pigment (anchoring group required) |
| Active Content | 30 – 100% (solution or liquid concentrate) |
| pH (10% solution, water-based types) | 7.5 – 10.5 |
| Density | 1.0 – 1.25 g/cm³ (grade dependent) |
| Packing | 25 kg / 200 kg drums |
| HS Code | 3402.90 |
Applications
- TiO2 & Inorganic Pigment Dispersion — Anionic polyacrylate dispersants wet TiO2, iron oxide, and extender pigments during grinding, reducing mill viscosity by 30–60% and enabling higher pigment loading per grind pass — critical for UAE paint manufacturers targeting high-efficiency production.
- Organic Pigment Stabilisation — Polymeric hyperdispersants with anchoring groups (amine or carboxyl) adsorb onto the organic pigment surface, providing steric stabilisation that prevents reagglomeration during letdown — essential for phthalocyanine blue, organic red, and high-strength colour systems.
- High-PVC Matt Paint Formulations — Helps stabilise chalk, calcite, talc, and kaolin extenders in high-PVC architectural matt paints — preventing syneresis and sedimentation during storage in GCC summer conditions (45°C warehouse temperatures).
- Concentrated Pigment Pastes — Enables production of high-loading pigment concentrates (colour pastes) for universal tinting systems — central to UAE and Saudi Arabia decorative paint tinting operations.
- Solvent-Based Industrial Coatings — Solvent-compatible dispersants for carbon black, organic pigments, and extenders in two-component epoxy and polyurethane coating systems where adequate dispersion directly affects corrosion resistance and film properties.
Key properties
- Reduces mill viscosity — higher throughput in grinding stage
- Prevents flocculation and reagglomeration during letdown
- Improves tinting strength and colour development of pigments
- Enhances gloss in gloss and semi-gloss formulations
- Improves storage stability at elevated GCC temperatures (45°C)
- Reduces settling of heavy pigments (iron oxide, barium sulphate)
- Enables higher pigment loading in grind paste
- Specific anchor groups available for organic and inorganic pigment types
Usage and recommendations
Selection depends on pigment type and binder system. For TiO2 in acrylic emulsion: anionic polyacrylate at 0.5–1.5% on TiO2 weight. For organic pigments in acrylic: polymeric hyperdispersant at 5–15% on pigment weight. For solvent-based systems: polyurethane-based dispersant at 1–3% on pigment weight. Always add dispersant to the grinding stage before pigment — not after. Overdosing can cause foaming and adhesion issues. Contact Raykem for grade selection matched to your specific pigment combination and binder system.
Packaging
- 25 kg PE Jerry Cans
- 200 kg Drums
- IBC 950–1,000 kg (on request)
Storage and shelf life
Store in original sealed containers at 5–35°C, away from freezing temperatures. Shelf life: 12–24 months (grade dependent). Keep sealed to prevent skinning and moisture uptake.