Tiny Black Spots On Wood Furniture. Woca tannin spot neutralizer removes black spots in just 5 easy steps. Spray woca tannin spot neutralizer evenly on the stain directly from the bottle.

Spray woca tannin spot neutralizer evenly on the stain directly from the bottle. Leave to dissolve for approx. Wipe with a damp cloth that has been wrung in lukewarm water.