Reproducing a Sea Sponge using Liquid Plastic


You can create perfect copies of any original Sea Sponge model using mold rubber and liquid plastic. Using different colors, you can create a limitless variety of casting effects to make plastic Sea Sponge display pieces that are one-of-a-kind and unique to your aquarium.  

Advantages/Benefits to Making Your Own Custom Sea Sponge:

  • Custom design
  • Easy maintenance
  • Will last indefinitely
  • Eliminates reef harvesting
  • Low cost
  • Aquarium-safe (will not harm fish, invertebrates or other sea life)
  • Chemically inert

Materials Used in this Tutorial

  • Dragon Skin® 10 Silicone
  • Smooth-Cast 325® COLORMATCH Urethane Resin
  • SO-Strong® Color Tints
  • Smooth-On Vacuum Chamber
  • Hot Glue
  • Clear Acrylic Tube
  • Mixing Containers
  • Mixing Sticks
  • Tape