Hi Peter,

Your background seems to be most relevant to the problem I’m having.  I’m working with purpleheart wood, and my application involves displaying the end grain.  Every time I slice off a section the purple color disapppears, and I’m left with a deep brown color.  Over time, the color returns, so I assume there is some oxidation process going on.  I don’t think the end grain has much to do with it, because if I surface plane a purpleheart board, the same thing happens.  Obviously, I’m choosing purpleheart for its distintive color, so brown purpleheart does nothing for me.  Is there some way I can accelerate the return-to-purple process?

Any help you can give would be greatly appreciated. 

Thanks so much for considering my question.

Regards, Dave