EnvisionTEC’s E-Silicone offers a solution to produce soft silicone otoplastics by the additive manufacture of cocoon molds. The custom fit E-Silicone molds may be injected with medical grade silicone materials. The eggshell-like mold may then be easily broken away, leaving a soft, flexible shell. These shells can provide patients with increased comfort, better retention, better acoustic seal, more gain before feedback and improved sound quality.

Key Features
» Hearing aid devices manufacturing

» Silicone injection for soft Shore 30 hearing aids

» Easily breakable eggshell-like results

Physical Properties


170-220 cP at 30°C


1.05-1.15 g/cm3

Recommended Projector Brightness

600 mW/dm2