Replies

1. 
   EdJW | May 02, 2003 10:40pm | #1

   Brad, the mason that reused my 50 year old limestone sills took a disksander to them, they cleaned up very nicely.  -Ed

2. 
   Lipper13 | May 02, 2003 10:43pm | #2

   Brad,

   Sand them down and they will look like new

3. 
   stonefever | May 04, 2003 04:02pm | #3

   And don't plan on doing it very often.

4. 
   andybuildz | May 04, 2003 05:04pm | #4

   Brad,

      I've had extensive experiances cleaning limestone.

   I let my wife talk me into installing 18" white limestone in an entry a house ago. What a mistake that was (see some pic in my websight below).

   Anyway, what you need is a "poultice". Comes in powder form. You can get it at any tile supply house or HD. You make a paste out of it and trowel it over the area you need to clean. Put some Saren Wrap over it and leave it for a day or what ever the directions indicate.

   I've actually used bleach instead of water mixed in the poultice on a really bad stain and it worked pretty good.

   Sanding won't do much because a stain goes "into" the stone.Limestone is seriously soft!  You need to penetrate it.

   BE penetrated

             Namaste

                       andy

    

    

   In his first interview since the stroke, Ram Dass, 66, spoke with great difficulty about how his brush with death has changed his ideas about aging, and how the recent loss of two old friends, Timothy Leary and Allen Ginsberg, has convinced him that now, more than ever, is the time to ``Be Here Now.''

   http://CLIFFORDRENOVATIONS.COM

5. 
   cam | May 04, 2003 07:10pm | #5

   when i have to clean a masonry wall or stone i use a power washer, with hot water.  My machine is 4000 psi with a 15 deg. tip.  The psi should be turned down so not to cut into the stone.  Limestone is very soft stone.  The combination of the psi the right tip and most important the hot water.  The hotter the better.