Alkegen (also known as Unifrax Holding) is a company that develops and manufactures specialty materials for mission-critical systems. It offers batteries, filtration, catalysis, insulation, fire protection, construction products, etc. The company serves the transportation and off-road equipment, construction and advanced materials, insulation, filtration and catalysis, and battery industries. Alkegen was formed as a result of a merger between Unifrax and Lydell.