This project was undertaken by the Coast Pro-Seal and Manu-facturing Company to develop fuel tank sealant compounds capable of withstanding fuel vapor temperatures of 540℉ and liquid fuel temperatures of 380℉ for a limited period of time.nA formula was developed for a sealant compound which was unaf¬fected by JP-5 Jet fuel under these conditions, retained flexibility and adhesion and withstood proof testing under flexing and pressure at the liquid and vapor fuel temperatures required.nA study was made of the thermal stability of the various commercially available types of butadiene-acrylonitrile polymers and combinations of them with various commercial phenolic resins. Studies were made with added antioxidants and in inert atmospheres.
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