<html><head></head><BODY bgcolor="#FFFFFF">I was alway under the impression that = "WD" stood for War Department" 40 - year = 1940. Brian > Hmm so it does have a lubircant (:) in = it.   The best thing I can say about WD 40 > for use in = pianos is in cleaning player piano spool drive mechanisms.  Did you = know > WD means Water Displacement or is that what a surfactant = is?     ric. > > ---------- > = > From: Newton Hunt <nhunt@jagat.com> > > To: pianotech@ptg.org; = fwilliam@collegeclub.com > > Subject: Re: WD-50 > > Date: = Wednesday, August 11, 1999 7:06 AM > > > > WD-40 is a = petroleum product composed of surfactants, solvents and 1/3 > > = light machine oil.   </body></html>