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Corrosion can be a huge problem on aircraft, and that is where PR1775B2 comes in. With its anti-corrosive properties, PR1775B2 creates a tight, durable seal between aluminum and other metals used on aircraft. After it is cured at room temperature, PR1775B2 remains elastic and resistant to jet fuel, gas and other aircraft fluids. PR1775B2 can withstand extreme temperature changes, and so is perfect to apply to any substrate of an aircraft.