Coating, sealing or impregnant compositions.

摘要

This invention concerns coating/sealer or impregnant compositions for substrates, for example cementitious substrates the compositions comprising (a) one or more dicyclopentenyl or dicyclopentenyloxy(C<Sub>1</Sub>-C<Sub>4</Sub>)alkyl acrylate or methacrylate, and (b) one or more drying oil fatty acid in an amount of at least percent by weight of the total of (a) and (b). Porous, e.g. cementitious, surfaces treated with the compositions of the invention exhibit improved water and crack resistance.