AC-78 electrically conductive polymers are capable of operating continuously at 260°C without changing their high-bond-retention or conductive properties. Tests have shown reliable performance at 350°C for periods of 15 min. These polymers exhibit bond integrity on many substrates, including boron nitride, titanium, aluminum, stainless steel, polytetrafluorethylene, ceramics, high-temperature plastic, glass and rubber. They provide excellent corrosion resistance and shielding from radio frequency and electro-magnetic interference.