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Best used on aircraft, PR1764B2 is a sealant that prevents electrical corrosion in high-heat situations. This is because PR1764B2 conducts electricity and has special ingredients that hold up against corrosion. PR1764B2 provides EMI/RMI protection and resists jet fuel and oil for a durable seal. As a paste, PR1764B2 is perfect for sealing metals of dissimilar qualities together and preventing any corrosion from happening, which is always a commonality in aircraft.