particularly adapted to disarming bombs and therefore a liquid disruptive material 18 is preferrable water is effective in disrupting bomb internal mechanisms and is therefore a preferred material however other materials including gelatinous or solid materials such as plastics having low melting points that will liquidify or gasify when subjected to the heat and shock pressure due to the detonation of the explosive are also applicable water latex paints and gelatins have been demonstrated to be effective in practice whatever the material used the principal requirement is that it should flow like a liquid when subjected to the detonation heat and pressure and have the desired disruptive effects on the target as shown in fig1 a case 12 has an outer covering layer of a second explosive material 20 that completely encircles the case circumferential surface and extends longitudinally along the case from the end housing the internal explosive to the point of attachment of the liner the exposed surface of internal explosive 14 is also covered with a layer 22 of the same explosive as that covering the case fig a shows covering explosives 20 22 as two separate pieces however they can be made as one continuous explosive covering if desired whatever assembly technique is used the explosive covering must completely surround the case and its contents the covering explosive is preferably in sheet form one sheet form of explosive found to be well suited for this device is flexible sheet explosive comprised of rdx nitrocellulose and plasticizers also acceptable are proprietary sheet explosives which use petn pentaerythride tetranitrate as the main ingredient the forces exerted inwardly on the disruptive material as indicated by the arrows in fig1 a 1c 1d when the covering explosive is detonated.