A method for preparing a mandrel tooling member (114, 214, 314) to receive a composite lay-up, the method comprising obtaining a mandrel tooling member (1 14, 214, 314) having at least one working surface (122, 222) configured to support a composite lay-up (302a, 302b); positioning a shrinkable material (140, 240, 340), in a pre-shrunk condition, about at least a portion of the mandrel tooling member (114, 214, 314) and the working surface; and causing the shrinkable material (140, 240, 340) to shrink and conform to the mandrel tooling member (114, 214, 314) and the working surface (122, 222) to provide a barrier about the working surface (122, 222).
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