Ethyl Silicate 40

WACKER SILICATE TES 40 WN is a mixture of tetraethyl orthosilicate and ethyl polysilicates, which can be used as a source of finely divided silica. It is used as a binder for precision investment casting molds. It is also used in formulating inorganic zinc rich protective coatings.

It must be hydrolyzed before it can be used as a binder in either the investment casting shell or solid mold processes; and as a binder for inorganic zinc rich protective coatings.