an injection molded mobile maintenance cart , made of electrostatic dissipative material , exhibits permanent , consistent , and controlled resistivity in the range of 10 6 to 10 9 ohms / square . the cart is made out of structural foam plastic which includes electrostatic dissipative components . inadvertent destruction of electronic components by a discharge of static electricity passing through a cart which carries the components is inhibited by ensuring that the cart is made from an electrostatic dissipative material .