I would like to know the best way to touch up the horizontal surface of a wooden casement window. The finish of some areas in the casement window have chipped out. I would like to touch up those areas. But I don't know what is the finish that was applied on the surface. Therefore, I don't know where to start. I would like people to help me to identify the finish that is on the surface of the wood casement window.
I am sure the finish is not paint because I can clearly see the wood grain. I have a feeling that there is a film over the wood that protected the wood, gives it a glossy/satin look, and also gives the wood a dark brown color. That film of finish is the thing that gets chipped out and exposes the light color wood under the finish. I have a feeling that the exposed wood underneat the film of finish has not been stained because its color is light.
What's the finish that was applied on the wood? How to touch up the areas that have chipped out?
Can I try something simple to restore like 75% of the original look in case I cannot determine the original finish on the wood? How's about wax? How's about tung oil?
I have read the caring-tip of the casement window in the manufacturer site (Anderson Window). But the document doesn't say what finish was put on the window.
Thanks in advance for any idea.
Jay Chan