RE: ...There is a streak in the top washboard and no matter how much I sanded or oiled it that streak would not disappear...
I don't see any "streak" on the top washboard. What kind of wood did you use for the washboard ? From the picture, it looks to me that it MAY be a birch ply. If so, it will have variances in the uptake of the oil. I take it that you used some type of tung oil ?
I don't see any "streak" on the top washboard. What kind of wood did you use for the washboard ? From the picture, it looks to me that it MAY be a birch ply. If so, it will have variances in the uptake of the oil. I take it that you used some type of tung oil ?