ethyl silicate

noun

Definition of ethyl silicate

  1. :  a colorless flammable liquid ester (C2H5)4SiO4 that hydrolyzes to silica and ethyl alcohol and is used especially in paints and coatings (as for weatherproofing stone and cement) and as a bonding agent (as for molds for casting metals) —called also tetraethoxysilane, tetraethyl orthosilicate

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