TWO COMPONENT POWDER COATING SYSTEM AND METHOD FOR COATING WOOD THEREWITH.

摘要

Wood is electrostatically coated with a thermosetting powder coating system in which a mixture of a self-curing epoxy resin and a catalyst therefore is extruded and a low temperature curing agent are both pulverized and the powders are blended with conventional additives to make a coating powder which is deposited on a wooden substrate and heated to cure. The mixture of resin and catalyst does not cure within the extruder but it is made to cure a low temperatures by the separate addition of the curing agent. A small amount of the low temperature curing agent, insuficientt to casuse substantial curing during extrusion may used in place of the catalyst.