Clearlake Capital-backed Unifrax, a provider of high-performance specialty materials, completed the acquisition of Rex Materials Group, a manufacturer of engineered thermal components. Financial terms were not disclosed. "This acquisition represents another step in the continued implementation of our long-term growth strategy and our focus on delivering energy efficient, environmentally friendly solutions around the world. The addition of Rex Materials expands our portfolio of high temperature engineered thermal components, enhances our overall manufacturing capabilities and supports our mission of creating a 'Greener, Cleaner and Safer' world. We are excited to add the Rex Materials team to our global Unifrax family and look forward to working together as we execute our compelling shared growth plan," John Dandolph, Unifrax President and CEO.