Polyether is a Polyurethane (PU) foam product which is made to withstand smaller shocks. It is often used as a foam on lightweight items and where a higher degree of absorption in the foam is needed.

PU24CN (Conductive) is an electrically conductive foam product which is therefore primarily used in foam installations that include sensitive electronics which must avoid static voltages

The foam is very black as it contains coal to be electrically conductive and is also sometimes chosen for its aesthetic expression