3M Marine offers a complete line of adhesives and sealants that are designed to perform in the harsh marine environment. When 3M began in 1902 our five founders had a simple goal: to mine for corundum a mineral ideal for making sandpaper and grinding wheels. Turns out what they thought was corundum was really another low-grade mineral called anorthosite. Discovering the poor-quality mineral could have caused an early end to our fledgling company but our founders persisted. Why? Because something more important was born that first year: the spirit of innovation and collaboration that forms the foundation of 3M today. So instead of calling it quits we turned to different materials applied them to other products gained the trust of important investors and built up sales little by little.