Discover our main brands websites

Arkema worldwide

  • Product


Micronised amide-modified hydrogenated castor oil rheology modifier
Contact our experts
Product overview
CRAYVALLAC® SF is a proprietary amide-modified hydrogenated castor oil rheology modifier with an enhanced tolerance to temperature and solvent strength suitable for a variety of different solvent-based systems e.g. aromatic hydrocarbons and aromatic hydrocarbon/alcohol blends. Compared to other hydrogenated castor oil based rheology modifiers, CRAYVALLAC® SF is more tolerant to strong solvents and high processing temperatures due to the presence of its unique performance enhancing amide. The activation process constitutes the conversion of the CRAYVALLAC® SF particles to an interacting network of fibre-like particles. It is this network that gives rise to the final coating’s shear thinning rheology. This shear thinning characteristic providesa very high viscosity under the low shear rates associated with sedimentation, and a low viscosity at the much higher application shear rates. The net result is excellent control of sedimentation combined with ease of application.
Geographic availability
Melting Point ( C) 135
Particle size distribution DV. 2 min: 4 µm / DV. 8 max: 20 µm
End use systems Solvent-free, Solventborne
Specific gravity 1.02
Appearance Off-white micronized powder
Solid Content (%) 100
Edge coverage
Pigment orientation
Ready to use
Easy handling
Viscosity stability
Post addition
In-can appearence
Syneresis resistance
APEO free Yes
Bacteria resistance Yes
Heavy metal free Yes
Solvent free Yes
Bio-content (%) 94