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The PS890 is a reliable and resilient pro-seal fuel tank sealant with excellent adhesion to various aircraft materials. The PS890 sealant has been designed for the sealing of integral fuel tanks, and is also suitable for a variety of alternative aircraft fuselage applications. The PS890 has a service range use of over -65Ã‚Â°F up to 275Ã‚Â°F. This sealant also has great resistance to aircraft gasoline, jet fuel, water, alcohols and other petroleum oils.