The Chomerics Division of Parker Hannifin Corp. has developed a lightweight electromagnetic-interference shielding material for high-temperature avionic and similar applications.
The Woburn, Mass.-based company says Premier PEI-140 maintains its high-temperature tolerance, chemical resistance and flame retardance for shielding levels up to 85 decibels. The product promises weight reduction in avionics end uses, and close tolerances for a tighter fit and improved sealing, according to Chomerics.
Polyetherimide is the base resin for the EMI shielding product. It is reinforced with a matrix of proprietary, conductive fillers. The reinforced material can withstand continuous use temperatures of up to 340° F, according to Chomerics.
Its properties mean Premier PEI-140 also is suited for applications in defense, medical, electronics and transportation.