Factice is vulcanized unsaturated vegetable or animal oil, used as a processing aid and property modifier in rubber.
Longer chain fatty-acid containing oils such as rapeseed or meadowfoam produce a harder, more desirable factice. Soybean oil produces lower quality factice, though it can be mixed with longer-chain oils to yield factice nearly as good as that made from long chain oils alone. Oil-resistant factice is made with castor oil.
Cross-linking the fatty-acid chains with sulfur (brown factice) or S2Cl2 (white factice) yields a rubbery material that improves the processing characteristics and ozone resistance of rubber. Varying the amount of factice changes the physical properties of the rubber; molded items might be 5-10% factice, extrusions 15-30%. Rubber erasers can have as much as 4 times as much factice as rubber in their composition.
This grade is in the form of light brown colored soft lumps. It can be used in the process like moulding, extrusion etc.
This grade is in the form of brown colored, gel. It is compatible to natural and other synthetic polymers.
It is light golden colored powder. This grade is completely oil resistant and compatible with all synthetic and natural rubber.
It is a creamy white colored powder made out of vegetable oil. It is sulfur chloride factice.