Sealed enclosure for receiving e.g. pipes in aeronautical field, has through orifice formed in wall to receive traverse element and closed by epoxy resin in sealed and reversible manner, where resin is hardened by hardening agent

摘要

The enclosure has a wall configured such that pressure difference exists on both sides of the wall. A through orifice is formed in the wall to receive a traverse element. The orifice is closed by epoxy resin in a sealed and reversible manner. The resin is hardened by hardening agent and soluble in solvent. The resin comprises a product for reaction of bisphenol A with epichlorohydrin, and oxirane derivatives. The hardening agent comprises triethylenetetramine and water. The solvent is selected from haloalkane and aliphatic alcohol mixture or methylene chloride and methanol mixture. An independent claim is also included for a method for sealing a through orifice receiving a traverse element in a wall.