Legrand Forix White IP44 Surface Mounted Veavien 10A 782363 These materials are made of cast or bakelite in structure. Today, the types made of bakelite are more preferred. Conductive input parts of Antigron switches and sockets are equipped with rubber gaskets and fittings. The front parts of the sockets are closed with a spring cover. Thus, moisture and gas are prevented from entering the switch and socket.