How To Improve The Surface Finish Of Foam Castings Using Back Pressure


Improving the Surface Finish of Foam Castings Using Back Pressure. How Does It Work? After pouring a liquid expanding foam into a mold, a board that has been pre-drilled with holes is placed over the mold cavity and held securely until the foam rises and cures. This compresses the foam and results in a tighter cell structure against the mold surface.

Materials Used in this Tutorial

  • FlexFoam-iT!™ X
  • MoldMax™ 30