Porous composition for use in an environment of variable pressure and/or variable temperature

摘要

A mixture of a binder and a particle material, the mixture having 50 to 90 volume percent of the particle material. The binder is curable in a temperature range of 50° F. to 90° F. The volume percent of the present composition provides an inherent permeability in any conventional application method. It can be sprayed or applied by hand and yet it still maintains an intrinsic permeability.