[MassHistPres] dry ice blasting for paint removal

[SCeccacci at aol.com]

Has anyone had experience with removing paint using the dry ice blasting  
method?  If so, what damage, if any, does it do to the  substrate?  
 
We have vertical tongue and grove wood sheathing on the front of a raised  
stage area in a lecture hall.  It is covered with multiple layers of paint  
dating possibly to as early as 1857. PeelAway paint remover removes the 
paint  layers unevenly, peeling down to the substrate in some areas but leaving 
others  intact.  This may be due to different types of paint applied to the 
area  over time.  Would dry ice blast removal work better (more uniformly)?  
 What are its pros and cons?
 
Susan McDaniel Ceccacci
Jefferson, Massachusetts
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