It's plaster
 
In a message dated 1/26/2010 12:38:42 P.M. Eastern Standard Time, [log in to unmask] writes:
Yeah, like, why is this, scientifically?  Why would wetting/drying (or is it just wetting?) destroy the bond of all the little teeny tiny particles?  And how did they stick together to begin with?  
 
c


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