The results of experiments to determine the mechanical properties of heat-shrinkable sleeves (TM) made of thermosetting polymer and muftokleevyh pipe joints. The possibility of obtaining polymeric epoxy materials with a wide range of elastic-deformation properties that allow for the development of the TUM. It is found that a stable shrinkage effect is provided when the content in a rigid matrix epoksipolimernoy from 15 to 25% epoksikauchukov.