Crayvallac SF Castor wax Cray Valley Rheology Modifier/ Thickener >> Organowax >> Castor Oil derivative (HCO-wax) Coatings >> Solventborne Inks >> Solvent-based Coatings >> Solvent-Free/ High-Solids Architectural / Decorative General Industrial /Maintenance INKS Crayvallac SF Also known as Crayvallac SF2. This product is a highly enhanced micronised amide modified castor wax rheology modifier for the control of sedimentation and sag resistance. Compared to other castor wax 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. This results in a lowered risk of problems due to processing temperature and solvent strength i.e. such as seeding and false-body. Highly enhanced micronised amide modified castor wax. Used for coating systems based on aliphatic hydrocarbons,aromatic hydrocarbons and aromatic hydrocarbon/alcohol blends. Used for solvent-free coatings and solvent-based liquid ink applications. Imparts shear-thinning rheology with thixotropic viscosity recovery. Gives very good anti-settle properties and good recoatability. More tolerant to stronger solvents.