To provide a method causing no spew from a bonding margin, capable of uniformly coating an adhesive and low in cost, in coating of a two-part curing type composition.

The two-part reaction curing type composition is provided, wherein the two parts are each held in the space in a vessel which is composed of a porous material having pores communicating the inside with the outside of the vessel and a wall comprising one or more selected from the group consisting of a resin, glass, wood and a metal, and a bonding method using the composition is provided.