Methods for the improvement of the interfacial bonding of aluminum and epoxy are discussed and tested experimentally. Current adhesion procedures are reviewed. The use of an epoxy adhesive film as an interface coupler and a method of anodizing the aluminum in phosphoric acid to create a favorable oxide surface are discussed. Adhesion through silane coupling agents is also studied, as a strong covalent chemical bond can be developed. Experimentally, seven different surface treatments and combinations of those treatments are tested in shear. The interfacial shear strength of the bond is tested in a manner resembling a fiber pull-out test. A half-inch diameter aluminum rod with the appropriate surface treatment is embedded in a cylinder of epoxy. Results show that mechanical types of adhesion enhancement, such as knurling and phosphoric acid anodizing, have the greatest ability to increase the shear strength of the interface. A corrosion-inhibiting primer in conjunction with an adhesive film also showed significant strength improvement.