A low density organic polymer impregnated preformed fibrous ceramic article includes
a plurality of layers. A front layer includes ceramic fibers or carbon fibers or
combinations of ceramic fibers and carbon fibers, and is impregnated with an effective
amount of at least one organic polymer. A middle layer includes polymer impregnated
ceramic fibers. A back layer includes ceramic fibers or carbon fibers or combinations
of ceramic fibers and carbon fibers, and is impregnated with an effective amount
of at least one low temperature pyrolyzing organic polymer capable of decomposing
without depositing residues.