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
Smooth-On Products Featured in Step-by-Step Tutorial:
  • Mold Rubber: Dragon Skin®10 Silicone
  • Resin: Smooth-Cast 325®COLORMATCH Urethane Resin
  • Colorant: SO-Strong®Color Tints (for urethane foam, resin and rubber)
  • Tools/Accessories: Smooth-On Vacuum Chamber