Silica is an unintentional oddball and is always naively curious about everything and everyone, He is skittish in new environments, but once he had built some of his confidence, Silica is bold and barely shows any fear in front of danger. He can be fiercely loyal to anyone he chooses to protect. He is also allergic to consuming water, but not snow. Silica is easily frightened by sudden noises, strange happenings, and Pinky's wrath. However he fully trusts Styrofoam for his intellect.