FIELD: chemistry.
SUBSTANCE: invention relates to preformed compositions in profiled form, having EMI/RFI-shielding ability, and to application of such compositions for hermetic sealing. preformed composition in profiled form is described. It includes basic composition, which includes polysulfide polymer and polytioether polymer and at least one electro-conducting filler, which contains Ni-fibres and nickel-plated graphite, composition of vulcanisating agent, where preformed composition has ability to shield EMI/RFI-radiation, also method of hole hermetic sealing in order to create EMI/RFI-shielding effect is described.
EFFECT: creation of preformed composition in profiled form, having ability to ensure efficient EMI/RFI-shielding with minimal corrosion of conducting surfaces in conditions, arising in process of application in fields of aviation and aerospace.
24 cl, 2 tbl, 1 ex
