I have a dark stain on a chair made from old wood.Now I would
like to have it natural.Is there anything I can do to get this
look
Use a paint and stain remover to pull out and remove the old
stain. It may require more than one application of the remover to
get all the old color out, especially if it is the overnight,
environmentally friendly type. If it's available in your area and
you don't mind using a very strong chemical, methyl chloride
strippers are the strongest and fastest. Of course you'll want to
wear heavy gloves, long sleeve shirt and long pants while you are
using the strong stuff.
Once you've removed the old stain, clean it with mineral spirits
to remove all traces of the stripper, then stain it whatever color
you like, or leave it natural and coat with a polyurethane.