the surface irregularities of the coatings the plastic is cured or solidified providing a unitary part 23 with a pair of comolded securely bonded coatings as shown in fig5 the fibers may be of any type such as fiberglass graphite aramid polybenzimidazole ceramic quartz metal or a hybrid combination of such fibers preferably a resin transfer molding or reaction injection molding process is used however the method is adaptable to use with preimpregnated fiber layer processing techniques using a vacuum autoclave system for producing molded parts in either case the matrix material fills the fibers and surface pores wetting out any reinforcing material and cures as a unitary part in the shape of the mold the method of the invention allows for masking of selective areas of the mold or preform prior to molding to provide coatings only on selected areas but assures full bonding with the comolded part while simple mold shapes are shown for illustration purposes an advantage of the invention is that complex parts of different shapes can be prepared in a single mold by the proper selection and design of the carrier substrate being composed of for example low melting alloys allows ease in producing consistent net shape multiple carrier.