URETHANE ADHESIVE COMPOSITION

The purpose of the present invention is to provide a urethane adhesive composition that can suppress a reduction in physical properties of an obtained cured product even if the mixing ratio between a main agent and a curing agent deviates from the design range. The present invention is a two-liquid type urethane adhesive composition comprising a main agent and a curing agent. The main agent comprises a poly isocyanate component, and the isocyanate group content in the main agent is 5 mass% or more of the total amount of the main agent. The curing agent contains a compound having a plurality of active hydrogen-containing groups per molecule, and the compound having a plurality of active hydrogen-containing groups per molecule comprises a high molecular weight polyol having two or three hydroxyl groups per molecule and a number average molecular weight of 1800 or greater, a low molecular weight polyol A having two hydroxyl groups per molecule and a number average molecular weight of 200 or less, and a low molecular weight polyol B having three hydroxyl groups per molecule, with at least one of the three hydroxyl groups being secondary hydroxyl groups, and a number average molecular weight of 1200 or less.