Abstract: Fluid gasket composition with fine rubber particles has sufficient elasticity. The particle size of the rubber particles contained in the fluid gasket composition is desired to be 0.1 to 3.0 mm. The fluid gasket composition applied to a joint portion between mechanical parts or the like exhibits an effect of sealing and absorbing vibrations, dislocation and mechanical movements taking place in the mechanical parts.

Abstract: An adhesive composition for being applied to at least one of thread contact faces of screw members so as to stick said thread contact faces to each other in engaging the screw members with each other for the purpose of locking and sealing the engaged screw members, in which micro-capsules enclosing at least a reactive monomer of a reactive adhesive composition comprising said monomer, a polymerization initiator of the aforesaid monomer and/or an activator of the aforesaid polymerization initiator is dispersed in a binder comprising a photo-hardening resin composition.

Abstract: A self-locking agent for a fastening device comprises a microencapsulated adhesive composition comprising the following constituents (a) to (c):(a) an epoxy compound having at least two epoxy groups,(b) an aromatic diamine represented by the following formula (a) or (b): ##STR1## wherein R.sub.1 to R.sub.4 each represent CH.sub.3, C.sub.2 H.sub.5, C.sub.3 H.sub.7, CH(CH.sub.3).sub.2, C.sub.4 H.sub.9 or a halogen, or ##STR2## wherein R.sub.5 to R.sub.7 each represent CH.sub.3, C.sub.2 H.sub.5, C.sub.3 H.sub.7 or a halogen, and(c) at least one compound selected from the group consisting of thiosalicylic acid, salicylic acid, benzoic anhydride, boron trifluoride and boron trifluoride complexes, wherein at least one of the epoxy compound (a) and aromatic diamine (b) is microencapsulated to keep them apart from each other, said self-locking agent has excellent thermal resistance and storage stability.