Siltech®C-228 is a 51% active polyether siloxane copolymer that is primarily used as a leveling agent for both solvent-borne and water-borne systems. It also provides some defoaming. It is diluted in butyl cellosolve.
Since its inception in 1989, Siltech has been actively developing materials for
use in the personal care market. During this time silicone compounds have
become an increasingly important segment of products for creating
innovative new technologies.