Coating composition for wood finishing

Water-borne UV-curable coating composition comprising

• (a) 30 to 70 wt % of a waterborne UV-curable polyurethane dispersion,
• (b) 10 to 40 wt % of a waterborne UV-curable acrylate emulsion,
• (c) 0.5 to 5 wt % of a mixture of defoamers comprising
• (i) 30 to 70 wt % of a silicone-free polymeric defoamer, and
• (ii) 70 to 30 wt % of a polysiloxane emulsion, based on the total weight of the defoamer,
• (d) 1.2 to 5 wt % of a mixture of photoinitiators comprising
• (1) 25 to 75 wt % a first photoinitiator selected from the group of acyl-phosphine-oxides, and
• (2) 75 to 25 wt % a second photoinitiator selected from the group of alpha-hydroxy-ketones
• based on the total weight of the mixture of photoinitiators, and
• (e) 0 to 30 wt % of colorant,
• wherein the amounts of components (a) to (e) are based on the total weight of the water-borne UV-curable coating composition.