A concrete or metal substrate which is normally subject to deterioration in the presence of corrosive substances such as strong acids, particularly sulfuric acid, is rendered corrosion resistant when covered with the improved multilayered coating of this invention. In particular, a coated article, such...http://www.google.fr/patents/US4347277?utm_source=gb-gplus-shareBrevet US4347277 - Corrosion resistant coated articles which include an intermediate coating layer of a thermosetting polymer and non-siliceous filler
Corrosion resistant coated articles which include an intermediate coating ...
