Basically, all materials can be treated with the piezobrush® PZ3-i. However, the correct module must be selected depending on the material; the conductivity of the material or assembly is decisive here. For non-conductive materials such as most plastics, the Standard or Needle Module is used. For conductive materials such as metal, on the other hand, the Nearfield or Nearfield Needle Module is used. If conductive materials are covered by non-conductive ones, treatment with the Nearfield or Nearfield Needle Module should also be considered.