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PPG Aerospace® PR-1750 B-1/2 Fuel Tank Sealant from SkyGeek is an integral fuel tank sealant with some serious sealing power. The fuel tank sealant has a service temperature range from -65ºF (-54ºC) to 250ºF (121ºC), but can also withstand intermittent exposure to temperatures as high as 360ºF (182ºC) without failure. The sealant works best for fillet sealing, but can be used for other fuselage sealing applications as well. Once cured, PPG Aerospace® PR-1750 B-1/2 Fuel Tank Sealant maintains its excellent elastomeric properties, even after prolonged exposure to jet fuel and aviation gas.
PPG Aerospace® PR-1750 B-1/2 Fuel Tank Sealant is a two-part formula that is designed to be mixed just before use. The sealant is sold in a 2.5-ounce 655-SemKit where the two components are kept separate until use. This ensures that the PR Class B-1/2 sealant is in its most active form when applied, delivering the best adhesion and seal. PPG Aerospace® PR-1750 B-1/2 Fuel Tank Sealant cures readily at room temperature.
Features
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Note: The application and performance property values above are typical for the material, but not intended for use in specifications or for acceptance inspection criteria because of variations in testing methods, conditions and configurations.
Surface preparationImmediately before applying sealant to primed substrates,the surfaces should be cleaned with solvents. Contaminants such as dirt, grease, and/or processing lubricants must be removed prior to sealant application.
A progressive cleaning procedure should be employed using the appropriate solvents and new lint free cloth (reclaimed solvents or tissue paper should not be used). Always pour solvent on the cloth to avoid contaminating the solvent supply. Wash one small area at a time.
It is important that the surface is dried with a second clean cloth prior to the solvent evaporating to prevent the redeposition of contaminants on the substrate.
Substrate composition can vary greatly. This can affect sealant adhesion. It is recommended that adhesion characteristics to a specific substrate be determined prior to application on production parts or assemblies.
For a more thorough discussion of proper surface preparation, please consult the SAE Aerospace Information Report AIR 4069. This document is available through SAE, 400 Commonwealth Avenue, Warrendale, PA 15096-0001.
Mixing instructions
PR-1750 Class B is supplied in a two-part kit. Mix according to the ratios indicated in the application properties section. Mix Part A and Part B separately to uniformity, then thoroughly mix entire contents of both parts of the kit to-gether taking care to avoid leaving unmixed areas around the sides or bottom of the mixing container.
Storage life
The storage life of PR-1750 Class B is at least 9 months when stored at temperatures below 80°F (27°C) in original unopened containers.
Health precautions
This product is safe to use and apply when recommended precautions are followed. Before using this product, read and understand the Material Safety Data Sheet (MSDS), which provides information on health, physical and environmental hazards, handling precautions and first aid recommendations. An MSDS is available on request. Avoid overexposure. Obtain medical care in case of extreme overexposure.
For industrial use only. Keep away from children.
For emergency medical information call 1-800-228-5635.
