A two-component polyurethane adhesive composition having a polyol component and an isocyanate component, wherein: the polyol component includes: a) at least 35 weight percent, based on the weight of the polyol component, of one or more polyols having a hydroxyl equivalent weight of 400 to 2000 and a nominal hydroxyl functionality of 2 to 4; b) 2.5 to 6 equivalents, per equivalent of a), of one or more aliphatic diol chain extenders; c) from 0.05 to 0.15 part by weight, per 100 parts by weight of component a), of one or more latent room temperature organometallic catalysts; and d) 0 to 60 weight percent, based on the weight of the polyol component, of at least one particulate filler, the polyol component being devoid of compounds having primary and/or secondary amino groups; the polyisocyanate component includes: at least 50% by weight of one or more organic polyisocyanate compounds; and 0 to 50% by weight of at least one particulate filler; wherein the isocyanate equivalent weight of the polyisocyanate component and the hydroxyl equivalent weight of the polyol component are such that when the polyisocyanate component and the polyol component are mixed at a 1:1 ratio by volume the isocyanate index is 1.1 to 1.8, and further wherein the polyol component or the polyisocyanate component includes an acid-blocked cyclic amidine catalyst, wherein when the acid-blocked cyclic amidine catalyst is present in the polyol component, it is present in an amount of 0.10 to 0.25 parts by weight per 100 parts by weight component a) and the combined weight of the acid-blocked cyclic amidine catalyst and the one or more latent room temperature organometallic catalysts is up to 0.31 parts by weight per 100 parts by weight of component a), and the acid-blocked cyclic amidine catalyst is present in an amount of 0.10 to 0.35 parts by weight per 100 parts by weight of the polyisocyanate component when present in the polyisocyanate component. the polyol component includes: a) at least 35 weight percent, based on the weight of the polyol component, of one or more polyols having a hydroxyl equivalent weight of 400 to 2000 and a nominal hydroxyl functionality of 2 to 4; b) 2.5 to 6 equivalents, per equivalent of a), of one or more aliphatic diol chain extenders; c) from 0.05 to 0.15 part by weight, per 100 parts by weight of component a), of one or more latent room temperature organometallic catalysts; and d) 0 to 60 weight percent, based on the weight of the polyol component, of at least one particulate filler, the polyol component being devoid of compounds having primary and/or secondary amino groups; a) at least 35 weight percent, based on the weight of the polyol component, of one or more polyols having a hydroxyl equivalent weight of 400 to 2000 and a nominal hydroxyl functionality of 2 to 4; b) 2.5 to 6 equivalents, per equivalent of a), of one or more aliphatic diol chain extenders; c) from 0.05 to 0.15 part by weight, per 100 parts by weight of component a), of one or more latent room temperature organometallic catalysts; and d) 0 to 60 weight percent, based on the weight of the polyol component, of at least one particulate filler, the polyol component being devoid of compounds having primary and/or secondary amino groups; the polyisocyanate component includes: at least 50% by weight of one or more organic polyisocyanate compounds; and 0 to 50% by weight of at least one particulate filler; wherein the isocyanate equivalent weight of the polyisocyanate component and the hydroxyl equivalent weight of the polyol component are such that when the polyisocyanate component and the polyol component are mixed at a 1:1 ratio by volume the isocyanate index is 1.1 to 1.8, at least 50% by weight of one or more organic polyisocyanate compounds; and 0 to 50% by weight of at least one particulate filler; wherein the isocyanate equivalent weight of the polyisocyanate component and the hydroxyl equivalent weight of the polyol component are such that when the polyisocyanate component and the polyol component are mixed at a 1:1 ratio by volume the isocyanate index is 1.1 to 1.8,