Substrate with a self-cleaning coating

摘要

The invention relates to a substrate ( 1 ) provided with a first coating ( 2 ) comprising at least one hydrophilic layer based on an at least partially oxidized silicon derivative, surmounted by a photocatalytic second coating ( 3 ) comprising partially crystallized titanium oxide and having a discontinuous/permeable structure. Application of this substrate to glazing, an architectural material or to mineral wool.