Abstract: An apparatus for automatically wrapping a plate for use in a lead acid industrial storage battery, said wrapping comprising a combination of three acid resistant, flexible porous materials forming an envelope adapted to insulate said plate while allowing free access of the battery acid to the surfaces of said plate. As configured, the wrapping apparatus comprises a plurality of regularly spaced, heated die fixtures attached to a servo controlled turntable, said turntable acting to index said dies through a set of six fixed work stations which are disposed on said apparatus around the periphery of said turntable. The six work stations of the apparatus are adpated to feed each of the three wrapping materials and a plate into one of said dies, wrap the materials around the plate, seal the edges of the outermost of said three wrapping materials, discharge the wrapped plate for further processing and measure the temperature of the heated die before it is recycled through the apparatus.