How To Make a Silicone Severed Head Prop


Shell Shock® brushable plastic and Plasti-Paste® trowelable plastic can be used in combination to create a rigid, strong, inexpensive mold. A mold created from these materials can be used for casting silicones directly without a mold release.

Constructing a core in the mold allows for a thin walled casting that uses a minimum of material. The hollow casting is then filled with inexpensive urethane foam to provide support.

Materials Used in this Tutorial

  • Shell Shock
  • Plasti-Paste
  • Sonite Wax
  • Sulfur Free Clay
  • Mixing Containers
  • Mixing Sticks
  • Screw Driver
  • FlexFoam-iT! 3
  • Acrylic Spray
  • Smooth-Cast 320
  • Ure-Fil 3
  • Universal Mold Release
  • Drill
  • Bolts
  • Hot Melt Glue Gun
  • Clamps
  • Dragon Skin
  • Silc Pig
  • Knife
  • Psycho Paint