Abstract: The present application relates to a two-component aqueous sealing primer for wood, comprising: Component A: a film-forming resin composition comprising at least one aqueous emulsion of cationic resin and optionally at least one additional additive; and Component B: a curing agent composition comprising at least one polyisocyanate. The formed sealing coating can substantially seal the tannin, grease, and other substances in the wood, and has good sandability.

Abstract: The present application relates to a coating system and a coated article. The coating system has a cracked structure and comprises: (a) a first coating formed by a first coating composition, the first coating composition being a one-component aqueous coating composition and comprising an aqueous dispersion of an aliphatic polyurethane resin and optionally additives; (b) a second coating formed by a second coating composition at least partially applied to the first coating, the second coating composition being a one-component aqueous coating composition and comprising an aqueous dispersion of at least one acrylic resin, silica micropowder, a coalescent and optionally other additives; wherein the aliphatic polyurethane resin has a film forming temperature of 0±10° C. according to ISO 2115:1996 and a film formed from the aliphatic polyurethane resin has an elongation at break according to JG/T 172-2005 in the range of 500-750%; and wherein at least one acrylic resin has a film forming temperature of 80±10° C.

Abstract: The present disclosure relates to a two-component aqueous coating composition for wood based substrates and an article made therefrom. The aqueous coating composition includes (i) a primary agent, said primary agent including a) an aqueous polyurethane dispersion (PUD), b) an aqueous acrylic modified polyurethane (PUA), c) an aqueous liquid carrier, and d) additional additives; and ii) a curing agent composition, said curing agent composition including a hydrophilic modified aliphatic polyisocyanate, wherein a mass ratio of said primary agent to said curing agent composition is in the range of 100:5 to 100:20. The two-component aqueous coating composition of the present disclosure has a longer pot life, and a superior constructability and the coating formed therefrom has a particular excellent gloss stability.

Abstract: The present application relates to a two-component aqueous sealing primer for wood, comprising: Component A: a film-forming resin composition comprising at least one aqueous emulsion of cationic resin and optionally at least one additional additive; and Component B: a curing agent composition comprising at least one polyisocyanate. The formed sealing coating can substantially seal the tannin, grease, and other substances in the wood, and has good sandability.