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Blisters / Spalling  
Cause Remedy
Flask being heated too rapidly during de-wax. Do not exceed 150oC during de-wax. Wax will boil and erode investment surface.
Flasks overheated during burnout. Ensure maximum burnout temperature does not exceed 740oC
Flasks put in furnace too soon after investing. Leave flasks undisturbed for a minimum of one hour before de-wax.
 
     
Casting-Trouble Shooting 
Mixing Guide    
De-Wax & Burnout Cycles    
 
   
   
       
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