Abstract: The present disclosure relates to use of an aqueous dispersion of siloxane for reducing grain puffing of a wood substrate and an article comprising an anti grain puffing coating. The article comprises (a) a wood substrate having at least one major surface; (b) an anti grain puffing coating directly applied on the major surface of the wood substrate, formed from an aqueous dispersion of siloxane; and (c) one or more coatings applied on the anti grain puffing coating, formed from an aqueous coating composition, wherein the siloxane contains one or more hydrophobic group and one or more hydrophilic group chemically bonded to its molecule skeleton; and wherein the siloxane has a particle size in the range of 5 to 100 nm.

Abstract: The present disclosure is directed to a solvent borne non-isocyanate curable two-components coating composition, comprising: component a) a film-forming resin composition comprising a resin component having carboxyl functional groups and hydroxyl functional groups and having an acid value of at least 23 mg KOH/g resin; and component b) an aromatic polycarbodiimide having two or more —N?C?N— moieties, wherein the carboxyl functional groups of the resin component and the —N?C?N— moieties present in the aromatic polycarbodiimide have a molar ratio in the range of 1:2 to 2:1, preferably in the range of 1:1 to 2:1; and wherein the coating composition comprises less than 1 wt % of water relative to the total weight of the coating composition. The present disclosure is also directed to an article comprising a substrate and a coating disposed thereon formed by the above solvent borne non-isocyanate curable two-components coating composition.