Elementis BENTONE B27 Organoclay, Rheology Anti‑settling Additive for Medium‑High‑polar Epoxy, PU Anti‑corrosive Coatings & Printing Inks
Elementis BENTONE B27 Organoclay, Rheology Anti‑settling Additive for Medium‑High‑polar Epoxy, PU Anti‑corrosive Coatings & Printing Inks
Full name & product positioning
Full product name: BENTONE B27 Organo‑modified Hectorite.
Conventional activated organoclay for medium‑to‑high‑polar organic solvents. Suited for epoxy, two‑component PU, anti‑fouling coatings and gravure / flexo inks to deliver robust thixotropy, anti‑settling and anti‑sagging.
Key technical parameters
| Chemical composition | Organo‑modified hectorite |
| Appearance | Off‑white to pale beige fluffy powder |
| Density | 1.80 g/cm³ |
| Moisture content | ≤3.0 % |
| Loss on ignition | 38‑42 % |
| 325‑mesh residue | ＜140 ppm |
| Physical form | Fine fluffy powder |
| Standard package | 25 kg / bag |
| CAS No. | 1302‑78‑9 |
Key benefits
1. Build stable thixotropic gel networks in ketone‑ester high‑polar solvent systems for powerful anti‑settling performance.
2. Outstanding anti‑sagging on vertical surfaces for high‑build heavy‑duty anti‑corrosive and anti‑fouling coatings.
3. Reduce storage‑phase water separation and sedimentation, enabling higher film‑build per coat.
4. Compatible with epoxy, two‑component polyurethane and vinyl resins of medium‑high polarity.
5. Usable for printing inks, wash primers and plastisol formulations.
Main application fields
Core applications: Epoxy heavy‑duty anti‑corrosive coatings, two‑component PU paints, anti‑fouling coatings, gravure / flexographic printing inks
Suitable for: Wash primers, foundry coatings, industrial touch‑up paints, adhesives
Not suitable for: Formulations based purely on low‑polar aliphatic solvents, 100 % water‑based systems, food‑contact articles