by Rick Hill
Bob Flexner, in the book "Understanding Wood Finishing" (from Rodale Press), does an excellent job of explaining the different types of bleach and their individual uses. Flexner states "There are three types of bleach used in woodworking...Two-Part bleach (sodium hydroxide and hydrogen peroxide) removes the natural color from the wood. Chlorine bleach removes the dye from wood....And Oxalic Acid removes rust and water stains from wood."
Your problem is now the gray in the bleached maple. Your best bet is to now use the right system--the two part bleach. It may remove the gray. Then go on as before. If the gray does not come out you can try to stain the wood to add color, but take into consideration that the gray will be the undertone and will affect the color.
Rick Hill is an independent representative and consultant for industrial wood finishes. He has been involved in the woodworking industry for 12 years, and has been known to actually hold, shoot, and clean a spray gun.
If you have an industry related question, visit WOODWEB's Finishing Forum to post your question.
Would you like to add information to this article?
Interested in writing or submitting an article?
Have a question about this article?
Have you reviewed the related Knowledge Base areas below?