EMI / RFI Coatings Overview: - Commercial electronics are often packaged within nonmetallic enclosures made from plastics, composites or other nonconductive materials. Non-conductive enclosures may be processed with conductive coatings to facilitate..

http://www.engineersedge.com/instrumentation/emi_rfi_coatings.htm

RFI (Radio Frequency Interference), which is also known as EMI (Electromagnetic Interference) is any electromagnetic radiation or disturbance which is emitted from an electrical circuit or electronic component that interrupts or interferes with the operation of other electronic components, or electrical circuits.RFI or EMI may..

http://www.engineersedge.com/instrumentation/emi_rfi_shielding.htm