I think it's a coat of paint. We just got done painting the kitchen, and I'm happy with it. This is where we spend most of our time when we're home. It's kind of big and "L" shaped, so we've been putting it off. The French doors are over 200 years old and from a friend's farm house. Pain to paint and clean, separate panes of "float glass" (wavy and bubbles) between the muttons. I have a customer that does high end plaster and paint, so I asked if he would slum it for a while, and we worked out a barter. I have to put fenders on his Silverado and paint some flares. Wifey and I worked our butts off for 2 weeks. Still a lot of cleaning to do. New switches, plugs and plates. We have new area rugs not down yet. Have to find a new black under cabinet radio and can opener. Any suggestions?