Cork has properties that make it well-suited for use in aerospace applications, such as being light, elastic, compressible, impermeable, and an efficient insulator against heat, sound, and vibrations. It is highly resistant to wear and tear. Cork composition is used to line rocket engines for NASA, insulating against high temperatures. Even at high heat, cork does not easily catch fire and offers rare flame resistance. Its unique properties demonstrate that cork is an advanced material being used in innovative aerospace applications, not just an antiquated one.