SILESTER AR

SILESTER AR is ready for use, prehydrolyzed ethyl silicate hybrid binder. The solvent in SILESTER® AR is ethanol and may be processed straight away to ceramic slips, ramming mixes and anticorrosion paints. Its degree of hydrolysis and pH have been optimized so as to provide the necessary reactivity and adequate storage stability. A change in pH, e. g. arising from addition of fillers, pigments, various additives or solvent evaporation, promotes condensation of the ethyl silicate and the system will cure more quickly. It is also important that the added components do not introduce uncontrolled amounts of water into the system as this would adversely affect the processing time / shelf life of the formulation. SILESTER® AR is primarily used to make 2-pack anticorrosion zinc-rich paints, especially shop primers.