Lathem's encapsulated coils are covered with DuPont's ZYTEL 70G33L resin, a
glass reinforced nylon. By using encapsulated coil motors, the Lathem time
recorders have a superior resistance to moisture (15% greater dielectric
strength*) and power surges. The encapsulation process also produces stronger
lead wires which reduces the chances that the wires will pull out of the motor
(double the pull-out strength*). The compact Lathem motors are permanently
lubricated and require no maintenance during their lifetime. * Compared to
standard tape wrapped coils.