Effects of Design Changes on Pressure and Cooling

This table summarizes the effect of design changes on the processability of a part.

Part/Mold/Material design change Pressure Required to Fill Cooling Time
Increase wall thickness Decrease Increase
Decrease wall thickness Increase Decrease
Increase flow length (change gate location) Increase N/A
Decrease flow length (change gate location) Decrease N/A
Add gates Decrease N/A
Add reinforcements (glass fiber) Increase N/A
Add colorant Increase or Decrease N/A