Three-component curable resin compositions

A thermoset adhesive composition, comprising:

• (a) a thermoplastic, substantially amine-terminated polyamide resin having an amine plus acid number greater than about 1 and less than about 50 and having an excess of free amine to acid groups, said polyamide resin comprising the reaction product of:
• a polymerized fatty acid,
• at least one acid selected from the group consisting of a linear dicarboxylic acid and a monocarboxylic acid;
• and
• at least one polyamine selected from the group consisting of linear, branched and cyclic polyamines;
• (b) a diluent, distinct from and not a part of the polymer structure of said polyamide resin, which is selected from the group consisting of dimer diamine, RNH.sub.2, RNHCH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2 and R--X--R' wherein R and R' are any C.sub.14 -C.sub.24 aliphatic hydrocarbons, and X is selected from the group consisting of ##STR2## (c) an epoxy resin having at least two epoxy groups per molecule of epoxy resin;
• said adhesive composition comprising a ratio of epoxy groups to free amine groups of greater than 1:1 and less than about 10:1 and a weight ratio of said polyamide resin to said diluent of from about 100:1 to about 4:1.