Demo Boat 22 - 35 mm thick
 

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Curing Profile of demo boat
 

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TESTING PROCESS
 

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PROCESSING 
 
   

All Prepregs can be molded similar to conventional epoxy Prepregs, either in compression molding, vacuum bag, or autoclave.
 

 

During the lamination of Prepregs, similar to any other Prepregs, it is convenient to debulk the materials every few layers by subjecting the stack to vacuum in a temporary bag or on a vacuum table. Other know-how techniques can be applied in order to debulk the materials properly before curing. Trapped air between layers will prevent proper curing.
 

 
What ever the molding process is, the three keys for a successful curing are:

 

No trapped air between the layers, as well as between the mold and the first layer;
   

Apply a minimum pressure of 1 bar and maintain it along the whole curing time;
 

 

Apply increasing, or constant, heat in order to bring the inside temperature of the whole compressed Prepreg layers, quite equal to the specified curing temperature, and maintain it for about 15 min.
 

If maximum Tg and mechanical performance are required, post cure has to be considered at a temperature 10-15oC below the maximum specified Tg, and this for 30-45 min.
   
 
 
 

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Last Updated 04 Jan. 2009