Welcome to Rotometals, Inc. located in the the San Francisco Bay Area. Founded in 1939, Rotometals specializes in a wide variety of alloys and anodes for all types and sizes of ships. We are a family owned and operated manufacturer of the highest quality zinc products. With years of experience and knowledge of the zinc anode industry and by using the purest alloys available, we manufacture the best anode to protect your costly investment from the effects of electrolysis. All of our anodes can be manufactured to MIL-A-18001 spec at our 20,000 square foot factory in Northern California. With more than 70 years of experience you can be assured of our commitment to quality, service and ethics. We are here to serve you. Our online catalog reflects most of our inventory. If you have a question or don't see what you need, just give us a call: 1-800-779-1102. We gladly accept the following payment methods: Visa, Mastercard, American Express, Discover, and PayPal. Thanks and we look forward to