REPLICATION MATERIALS ARE USUALLY EPOXY-BASED POLYMERS THAT HAVE A PUTTY OR FLUID CONSISTENCY. WHEN CURED AGAINST AN ACCURATE SURFACE THEY BECOME FINISHED LOW- FRICTION SLIDEWAY SURFACES OR SURFACES APPROPRIATE FOR MOUNTING PRECISION COMPONENTS. EXAMPLES OF REPLICATION TECHNIQUES IN NEW MACHINE CONSTRUCTION ARE REVIEWED. THE ECONOMIES OF REPLICATED HYDROSTATIC BEARINGS AND THEIR TECHNICAL ADVANTAGES ALSO ARE REVIEWED.
