Factice is the vulcanized fatty oil (vegetable
oil or, in some cases ,animal oil). Such oils
are reacted with sulfur (Brown Factice) or sulfur
monochloride (White Factice). Also sulfur and
chloride free factice is available which is
produced by the reaction of peroxide and
isocyanate with fatty oil. You can use it in
your rubber compounds as a processing aid,
softener, dry plasticizer and also to prevent
the shrinkage and to improve the fluidity of the
compounds.