Flammable Fluid Fire Protection Seals
Aircraft powerplant fire zones must retain any flammable fluids that may leak within them. AkroFire designs, tests, and manufactures flexible fluid seals to protect:
Our advanced tooling methods make it possible to achieve fluid seals of virtually any shape.
14 CFR § 27.863
Flammable fluid fire protection
https://www.law.cornell.edu/cfr/text/14/25.863
AC No. 25.869-1A
https://www.faa.gov/documentLibrary/media/Advisory_Circular/AC25.869.pdf