POLYUREA PERIMETER SEAL FOR AN AIRCRAFT ANTENNA OR OTHER AIRCRAFT PART

摘要

A sealant is provided for use on an aircraft or other vehicle. The sealant may be used with a gasket. The sealant is a perimeter seal that comprises a polyurea member. The polyurea member is a self-curing, two-component mix. It may cure to a hardness in the range of about 40 to 100 (Shore A). It may maintain an adequate peel strength to withstand multiple thermal and pressure cycling, and may have a working life, wherein it may be shaped, of less than about eleven minutes.

主权项

1. A sealant for use on an aircraft having an aircraft base and an aircraft workpiece, with a gasket having a gasket body, the gasket for compression between the aircraft base and the workpiece so as to deform the gasket body, the sealant comprising:
a perimeter seal comprising a linear polyurea member formed from a self-curing two-component mix of cured in place polyurea, the perimeter seal contacting the base and the workpiece;
wherein the cured polyurea has a hardness in the range of about 40 to 100 (Shore A); andwherein the linear polyurea member is capable of withstanding multiple thermal and pressure cycling while maintaining a peel strength of between about 10 to 40 pounds/inch width.