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 polyether polyols having a hydroxyl equivalent weight of 400 to 2000 and a nominal hydroxyl functionality of 2 to 4, which polyether polyols(s) are selected from homopolymers of propylene oxide and copolymers of 70 to 99% by weight propylene oxide and 1 to 30% by weight ethylene oxide; b) 5 to 20 parts by weight, per 100 parts by weight of ingredient a) of the polyol component, of one or more diol chain extenders; c) 0.1 to 3 parts by weight, per 100 parts by weight of ingredient a) of the polyol component, of at least one compound having at least two primary and/or secondary aliphatic amine groups; d) a catalytically effective amount of at least one urethane catalyst; and e) up to 60 weight percent, based on the weight of the polyol component, of at least one particulate filler; and the polyisocyanate component includes: 15 to 60 weight percent, based on the weight of the polyisocyanate component, of at least one isocyanate-terminated poly(butylene oxide) prepolymer having at least 2 isocyanate groups per molecule and an isocyanate equivalent weight of 700 to 3500, a poly(butylene oxide) segment having a weight of 1000 to 6000 g/mol, wherein the poly(butylene oxide) prepolymer is formed from a poly(butylene oxide) polyol which is a homopolymer of 1,2-butylene oxide and/or 2,3-butylene oxide or a copolymer of one or both of these with up to 10 mole-% of a copolymerizable alkylene oxide 20 to 50 weight percent, based on the weight of the polyisocyanate component, of at least one polyisocyanate compound having an isocyanate equivalent weight of up to 350 and 2 to 4 isocyanate groups per molecule; and up to 50% by weight of at least one particulate filler; wherein the isocyanate equivalent weight of the polyisocyanate component and the equivalent weight per isocyanate-reactive group 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. the polyol component includes: a) at least 35 weight percent, based on the weight of the polyol component, of one or more polyether polyols having a hydroxyl equivalent weight of 400 to 2000 and a nominal hydroxyl functionality of 2 to 4, which polyether polyols(s) are selected from homopolymers of propylene oxide and copolymers of 70 to 99% by weight propylene oxide and 1 to 30% by weight ethylene oxide; b) 5 to 20 parts by weight, per 100 parts by weight of ingredient a) of the polyol component, of one or more diol chain extenders; c) 0.1 to 3 parts by weight, per 100 parts by weight of ingredient a) of the polyol component, of at least one compound having at least two primary and/or secondary aliphatic amine groups; d) a catalytically effective amount of at least one urethane catalyst; and e) up to 60 weight percent, based on the weight of the polyol component, of at least one particulate filler; a) at least 35 weight percent, based on the weight of the polyol component, of one or more polyether polyols having a hydroxyl equivalent weight of 400 to 2000 and a nominal hydroxyl functionality of 2 to 4, which polyether polyols(s) are selected from homopolymers of propylene oxide and copolymers of 70 to 99% by weight propylene oxide and 1 to 30% by weight ethylene oxide; b) 5 to 20 parts by weight, per 100 parts by weight of ingredient a) of the polyol component, of one or more diol chain extenders; c) 0.1 to 3 parts by weight, per 100 parts by weight of ingredient a) of the polyol component, of at least one compound having at least two primary and/or secondary aliphatic amine groups; d) a catalytically effective amount of at least one urethane catalyst; and e) up to 60 weight percent, based on the weight of the polyol component, of at least one particulate filler; and the polyisocyanate component includes: 15 to 60 weight percent, based on the weight of the polyisocyanate component, of at least one isocyanate-terminated poly(butylene oxide) prepolymer having at least 2 isocyanate groups per molecule and an isocyanate equivalent weight of 700 to 3500, a poly(butylene oxide) segment having a weight of 1000 to 6000 g/mol, wherein the poly(butylene oxide) prepolymer is formed from a poly(butylene oxide) polyol which is a homopolymer of 1,2-butylene oxide and/or 2,3-butylene oxide or a copolymer of one or both of these with up to 10 mole-% of a copolymerizable alkylene oxide 20 to 50 weight percent, based on the weight of the polyisocyanate component, of at least one polyisocyanate compound having an isocyanate equivalent weight of up to 350 and 2 to 4 isocyanate groups per molecule; and up to 50% by weight of at least one particulate filler; wherein the isocyanate equivalent weight of the polyisocyanate component and the equivalent weight per isocyanate-reactive group 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.