The Electrostatic Process We specialize in refinishing bathroom partitions, railings, wrought iron fences, elevator doors,appliances, if it is metal we can paint it... We use a specially formulated two part urethane paint that is mixed with a catalyst and given a positive charge by a transformer. The metal object to be painted is then grounded by attaching a wire from the spray unit. The paint is then drawn magnetically to the item being painted with a 98% transfer efficiency. This system allows us to paint metal items without fear of over-spray on adjacent surfaces.