Our plate foam is made from extra soft, slow rebound poron. This material is optimal in thickness and density to provide the cleanest, crispest notes with any switch you use.
Our case and PCB foam are made from very soft poron, which has a higher density than our plate foam. This increase in density is much better suited to reduce vibration, decrease hollowness and pinging, and eliminate reverb within the keyboard.
Plate Foam - Installed between the switch plate and PCB
Case Foam - Installed in the bottom of the case