Polyamide resin is produced from the reaction of dimerized and trimerized fatty acids with polyamines. Polyamides are versatile curing agents for epoxies. They are pleasant to handle, are compatible with many resins, and their mixing ratio with resin is not critical. Fairly long pot life is possible. It yields casting with good impact strength—excellent adhesion to many different substrates. Sometimes polyamides are regarded as flexibilities as well as curing agents. Polyamide Adducts provide good compatibility and better cure under adverse conditions than standard polyamides without induction time.