Abstract: This invention relates to compacts obtained from nonmetallic and metallic powders by die pressing. In particular, it describes an improved method of manufacturing parts from powders where the properties of powders and green compacts can be readily controlled and modified to obtain final products according to desired specifications and dimensions. Introduction of an uniform procedure for determination of powder and green compact properties: slide coefficient, compactibility coefficient and cohesiveness, by a simple compaction test allows to optimize the selection of binders, plasticizers, lubricating substances and the methods of powder preparation prior to pressing operation. With the powder properties known, the pressing parameters can be precisely established and an optimum material and surface treatment for the compacting die can be chosen. With the value of cohesiveness given by the test, the process can be designed to eliminate mechanical defects in compacts such as cracks and laminations.