Rheology Modifier
CAS Number: 71011-38-2
Organically modified bentonite (organoclay) rheology modifier that builds thixotropic structure in solvent-borne coatings, greases, and adhesives. It swells in organic solvents to form a three-dimensional gel network, providing anti-settling, anti-sag, and sag-resistance properties. Highly effective at low loading and compatible with a wide range of solvents and resins.
Technical Specifications
| appearance | Off-white fine powder |
| bulk density | 0.40 – 0.60 g/cm³ |
| gel viscosity | ≥ 30 mPa·s (2% in toluene) |
| particle size | < 74 μm (200 mesh, ≥ 95%) |
| moisture content | ≤ 4.0% |
Applications
- Solvent-borne industrial and protective coatings
- Automotive coatings and body fillers
- Greases and lubricants
- Adhesives and sealants
- Gel coats for composites
Key Features
- Strong thixotropy and sag resistance
- Prevents pigment and filler settling
- Effective at low concentration (0.5–3.0%)
- Improves film build on vertical surfaces
- Compatible with aromatic and aliphatic solvents