Finishing Hardwood Flooring

Q: I have a question about finishing wood. I have sanded down the wood in preparation for putting on a shiny topcoat of varathane or polyurethane. When I finish sanding I wipe off the sawdust with a wet cloth. When the floor is wet it looks much darker than it does when it's dry. Does the coloring of the floor when it is wet pretty much give you an indication of what the coloring will be when clear polyurethane or varathane goes on?

A: The floor should be wiped with a tack cloth not a damp cloth. Water swells the wood fibers. It must be 100% dry before you stain, not 99.9% but 100%. The wet darker appearance is Not a good indication of what you will get. A clear high quality urethane will not change the color of the floor.

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