MICROPARTICLE BREATHER LAYER FOR USE IN COMPOSITE PART MANUFACTURE

摘要

A breather material for use within a negative pressure environment (e.g., for use with a vacuum bag in the manufacture of composite articles), wherein the breather material comprises, at least in part, a plurality of microparticles, such as cenospheres as obtained from the byproduct fly ash, as well as a binder that operates to adhere the microparticles together.