Remodeling house for sale, water damage to imitation wood panelling

The basement family room has a couple walls finished in those 4x8
sheets of "wood" paneling. Each panel looks like serveral walnut
boards running vertically with a black line between each board.

Because of basement flooding, about 4 inches up on each board there is
a whitish area from the left side to the right.

Any suggestions for making the white parts look brown and black again?

They're going to test on a small spot whatever is suggested, but there
really aren't any spots to test where no one will see it, so I hope
they can hit the jackpot early.


I was thinking of Old English polish that includes the coloring. It
comes in dark, the original, and light? How's that sound? Dark or
light?

Thanks.