Applying darker stain in a sealer, over initially sealed in stain?

Q: Can you put stain on in a sealer? We’re reviewing the progress of our floors and don’t like the varied colors of the wood boards. We’d like to paint over the stain that’s already been sealed, with a darker stain.

Will this work?

A: I wouldn’t rely on that method. It is normal to have variation in colour from one board to the next.

I gave a gallon of Poloplaz 202 to a civil engineer friend of mine, who then added universal colourants to it and stain and coated a cabinet in one step. He said it worked great. How using a process like that on a floor that will be walked on is another matter.