Elementis BENTONE HC Hectorite Clay, Thickening Anti‑settling Anti‑sagging Rheology Additive for Water‑based Coatings & Sealants
Elementis BENTONE HC Hectorite Clay, Thickening Anti‑settling Anti‑sagging Rheology Additive for Water‑based Coatings & Sealants
Full name & product positioning
Full product name: BENTONE HC Modified Hectorite Inorganic Clay.
Mineral‑origin rheology additive designed for aqueous systems. Swells in water to form thixotropic colloids for thickening, suspension and anti‑sagging in water‑borne coatings, adhesives and sealants.
Key technical parameters
|
Chemical composition |
Modified lithium magnesium silicate (hectorite) |
| Appearance | Grey‑white fine powder |
| Density | 2.60 g/cm³ |
| Moisture content | ≤10.0 % |
| pH of 2 % aqueous dispersion | 9.0‑10.0 |
| 325‑mesh residue | ＜200 ppm |
| Physical form | Fine powder |
| Standard package | 25 kg / bag |
| CAS No. | 123345‑12‑0 |
Key benefits
1. Rapid hydration and swelling in water to form translucent‑to‑opaque thixotropic colloids.
2. Excellent suspension effect to prevent sedimentation of heavy pigments and fillers.
3. Improve anti‑sagging property of water‑borne coatings and favourably handle workability without deteriorating water resistance of cured films.
4. Good compatibility with acrylic, water‑borne PU and styrene‑acrylic emulsions.
5. Inorganic mineral grade, resistant to microbial degradation and viscosity loss caused by biological spoilage.
Main application fields
Core applications: Water‑borne industrial coatings, water‑based architectural coatings, water‑borne sealants, water‑based adhesives
Suitable for: Water‑based colorants, foundry water‑borne coatings, water‑based floor primers
Not suitable for: Pure solvent‑based systems, strongly‑acid aggressive formulations, food‑contact articles