Patent ID: 8404312
Filing Date: 2013-03-26
Classification: B27N

Abstract:
1. A method for sealing an outer surface of an engineered wood substrate comprising the steps of: providing an engineered wood substrate; and applying a two part sealing system having a first part comprising a coagulating agent and a second part comprising an aqueous coating composition comprising a wax emulsion or dispersion and a polymer resin to at least one surface of the substrate; wherein the first part and second part of the sealing system are applied in succession to the substrate and mixed upon contacting the substrate, or are applied using at least one sprayer and mixed in-flight in a spray stream prior to contacting the substrate, and the sealing system forms a film on the outer substrate surface which resists penetration of the sealing system into the substrate surface and allows for a reduction in the amount of the aqueous coating composition required to reduce swelling when the substrate is exposed to water.