Caswell specializes in providing a wide range of metal finishing solutions, catering to the needs of individuals and businesses alike. Their product lineup includes electroplating kits, metal antiquing solutions, polishing supplies, and black oxide kits. Additionally, Caswell offers unique products like epoxy gas tank sealer for repairing steel, aluminum, fiberglass, and plastic gas tanks. The company supports DIY enthusiasts and professionals in various industries, including automotive and motorcycle restoration, by offering resources such as free instructional booklets on buffing and polishing. Caswell also hosts an online forum for metal finishing enthusiasts to share tips, tricks, and support.