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The PR1750B2 is a sealant which is ideal for aircrafts and aircraft fuel tanks. The sealant is specifically for sealing of fuel tanks, along with other fuselage applications. The PR1750B2 maintains fantastic elastomeric properties, and has a temperature range from -65Ã‚Â°F up to 250Ã‚Â°F. With further intermittent incursions the range can be up to more like 360Ã‚Â°F. The PR1750B2 also has good resistance to other fluids like water, alcohol and hydraulic fluids.