Patent ID: 8388885

Claim:
A method of manufacturing a fiber reinforced article, the method comprising the steps of: providing a fiber structure defining voids therein; providing a first membrane assembly having a first fabric and having a first microporous membrane laminated to at least a portion of the first fabric such that the first membrane assembly has a membrane side and a fabric side, and the fabric side and the membrane side both have an oil resistance rating of at least a number 8 determined by AATCC 118 testing; providing a second membrane assembly having a second fabric and having a second microporous membrane adjacent to at least a portion of the second fabric, the second microporous membrane has an oil resistance rating of at least a number 8 determined by AATCC 118 testing; applying the first membrane assembly over at least a portion of the fiber structure; applying the second membrane assembly over at least a portion of the first membrane assembly; providing a resin and hardener mix at a temperature up to 180° C.; and infusing the resin and hardener mix into voids of the fiber structure by applying a vacuum to the fiber structure and the first and second membrane assemblies wherein the first and second membrane assemblies inhibit the flow of resin therethrough.