Troythix XYZ Castor oil ester Troy Waxes & Paraffin >> Castor Oil derivative (HCO-wax) ADHESIVE >> Solvent based SEALANT Troythix XYZ Castor oil ester Rheology control Solvent-based systems such as sealants and adhesives Use level: 0.40-1.70%. Castor oil ester. Used as a rheology control agent for solvent-based systems such as sealants and adhesives. Use level: 0.40-1.70%.