Abstract: An adhesive composition for filling gaps and sealing joints in engineering assembly comprises a blend of 100 parts by weight of a liquid polybutadiene polymer having an average molecular weight from 1,000 and a viscosity from 2 to 800 dPas at 25.degree. C., at least 40 percent of the unsaturation having a 1,4 configuration, preferably cis 1,4; 5 to 60 parts of powdered sulphur; 2.5 to 70 parts of an organic accelerator or accelerators; and up to 80 percent by weight of an inert filler or fillers. The adhesive composition may also include promoters, dessicants, blowing agents and/or solid rubber, preferably solid polybutadiene.

Abstract: An apparatus for applying pasty materials in the form of a fillet to a region between two surface parts includes an extrusion nozzle and a guide means at one end of the extrusion nozzle, the guide means including a fillet-forming portion which straddles the region and forms the fillet therein, and wiping portions which contact the surface parts adjacent to the region so as to prevent extruded pasty material from being deposited thereon.