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The two-part sealant known as PR1773A2 is a liquid adhesive that is best used on access doors in aircraft. Because of its high resistance to heat, PR1773A2 is actually perfect to use on any part of an aircraft or in the makeup of form-in-place gaskets. PR1773A2's unique characteristic is its anti-corrosive ingredients, which are perfect to apply to the aluminum alloys present on airplanes. This two-part PR1773A2 sealant is also a non-chromate.