Adhesion to mold and demolding

Adhesion to mold depends on work of adhesion given by the following equation W,(0.01) 

01 multiplier which indicates that only 1% of surfaces are in the bonding 

It was later found that the force of release passes through a maximiun value which is larger by 46% than the force of separation, F  

Using these equations, the forces of release, were calculated for two dif- 

Adhesion of polystyrene to many mold materials was evaluated in a classical work over a half of a century ago. Pull-out force was used in evaluation and the results justified the following practical observations  

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