I am practicing frame and panel doors. I assembled a small one, where frame is a solid red oak and the panel 1/4" red oak plywood. I only applied a danish oil finish, natural, no stain. Then I noticed that the plywood is much darker than the solid wood, the difference that wasn't noticeable before applying the finish.
I assembled another door. While cleaning the polyurethane glue off the door with the paint thinner, I noticed that the reddish color came off the plywood when I swiped it with the paint thinner cloth. Are plywoods stained? Is this a natural wood pigment that comes out because of the very thin veneer?
Please tell me: Other than applying darker stain, is there a way to keep the same natural color of plywood and solid oak after the finish? Many thanks.