Conductive Paint is widely used in the electronics industry today for EMI RFI shielding and electrostatic discharge (ESD) control. Conductive paint is sprayed onto the plastic using an air atomizer or airless spray equipment. Key process attributes are tailored for each application to provide optimal EMI/RFI shielding or electrostatic control performance including:
Spray pattern – parts can be masked by hand with tape and plugs or by using custom built paint masking fixture
Paint type – includes graphite, nickel, copper, silver plated copper and silver particles in water or solvent based matrix.
With the widespread use of digital electronic devices in a myriad of consumer, industrial and commercial applications, control of electromagnetic interference (EMI) from internal or “stray” signals has become increasingly important.
With the ever increasing speed of circuits and devices, crosstalk becomes a design problem. So does the ever more crowded communications spectrum both in bandwidth and proximity. The reflective solution only redirects the energy, and that’s sometimes good enough. However, at higher frequencies it can remain a problem. You can simply eliminate the issue with absorption. Less design time, fewer performance surprises, higher quality at equal or less cost.
EMI essentially consists of radio frequency (RF) electromagnetic energy interacting with the components of an electronic device. EMI can negatively affect the performance of consumer electronics equipment.