Short term exposure to water for unprocessed laminate is one thing,  exposure 
of processed PWAs is another. In the latter case, some of the process  
chemicals may be hydrophyllic (water attracting and binding). Thus the water may  be 
fairly tightly bound to the laminate surface or even pulled into the body of  
the laminate itself. 
In some cases, this effect is temperature and humidity dependent. For  
example, below 70%RH, PWA performs as designed to, above 70% SIR goes in the  trash. 
Scary part was the phenomenon was reversible- PWA worked or failed as the  RH 
went up and down.
Thus it could be difficult to give a simple answer to the 'when  is it dry' 
question without knowing the process and process chemistry.  

Bill  Kenyon
Global Centre Consulting
3336 Birmingham Drive
Fort Collins, CO  80526
Tel: 970.207.9586   Cell:  970.980.6373




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