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Clearlake-backed Unifrax to buy Lydall for $1.3bn

Unifrax, which is backed by Clearlake Capital, has agreed to acquire Lydall for about $1.3 billion.

Unifrax, which is backed by Clearlake Capital, has agreed to acquire Lydall for about $1.3 billion. The deal is expected to close in the second half of 2021. Lydall is a provider of specialty filtration materials and advanced material solutions.


TONAWANDA, N.Y. and MANCHESTER, Conn., June 21, 2021 (GLOBE NEWSWIRE) — Unifrax, a leading global provider of high-performance specialty materials focused on thermal management, specialty filtration, battery materials, emission control and fire protection applications backed by Clearlake Capital Group, L.P. (“Clearlake”), today announced it has signed definitive agreements to acquire Lydall, Inc. (NYSE: LDL, “Lydall” or the “Company”), a leader in the design and production of specialty filtration materials and advanced material solutions. With its leading technologies and 23 manufacturing facilities around the world, Lydall is well positioned to capitalize on growth in clean air filtration and electric vehicle adoption, among many other attractive markets. Under the terms of the agreement, Lydall shareholders will receive $62.10 per share in cash for each share outstanding, implying a total enterprise value of approximately $1.3 billion.

“The combination of Unifrax and Lydall creates a global specialty materials platform with new cutting edge technologies in advanced filtration, electric vehicle battery systems, and energy saving applications,” said John Dandolph, President and CEO of Unifrax. “The addition of Lydall’s people, technologies, and assets to the Unifrax portfolio will help accelerate our innovation pipeline and creates a world class platform capable of solving the world’s most pressing energy consumption, environmental and filtration challenges. We are excited to partner with a company that is similarly focused on our commitment to a Greener, Cleaner, and Safer® world.”

Sara Greenstein, President and CEO of Lydall, added, “We are excited about the combination of Lydall and Unifrax. With this transaction, we are creating a leader in specialty filtration and advanced materials with over 250 years of combined expertise and experience delivering innovative and compelling solutions to customers worldwide.”

“We have long admired Lydall and what it would bring to our platform investment in Unifrax, and could not be more excited about partnering with the Company and its team to build one of the world’s leading global specialty materials platforms,” said José E. Feliciano, Co-Founder and Managing Partner at Clearlake, and Colin Leonard, Partner at Clearlake, in a joint statement. “We have supported Unifrax’s development of new technologies over the last few years that have the potential to change how we think about the industries in which both Unifrax and Lydall operate and inform their futures. The addition of Lydall to the Unifrax portfolio and its strong capabilities in advanced filtration creates a global platform with significant scale that together can accelerate each company’s respective compelling growth plans.”

Morgan Stanley & Co. LLC acted as lead financial advisor, J.P. Morgan acted as financial advisor, and Kirkland & Ellis acted as legal counsel to Unifrax in the transaction. BofA Securities is acting as exclusive financial advisor, and Davis Polk & Wardwell LLP is acting as legal counsel to Lydall in connection with the transaction.

Approvals and Timing

The transaction, which has been approved by the boards of directors of both companies, is expected to close in the second half of 2021 subject to the receipt of required regulatory approvals, approvals of Lydall stockholders and other customary closing conditions.

Important Information For Investors And Stockholders
This communication does not constitute an offer to buy or sell or the solicitation of an offer to buy or sell any securities or a solicitation of any vote or approval. This communication relates to a proposed transaction between Lydall and Unifrax. In connection with this proposed transaction, Lydall may file one or more proxy statements or other documents with the Securities and Exchange Commission (the “SEC”). This communication is not a substitute for any proxy statement or other document Lydall may file with the SEC in connection with the proposed transaction. INVESTORS AND SECURITY HOLDERS OF LYDALL ARE URGED TO READ THE PROXY STATEMENT AND OTHER DOCUMENTS THAT MAY BE FILED WITH THE SEC CAREFULLY AND IN THEIR ENTIRETY IF AND WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION. Any definitive proxy statement(s) (if and when available) will be mailed to stockholders of Lydall as applicable. Investors and security holders will be able to obtain free copies of these documents (if and when available) and other documents filed with the SEC by Lydall through the website maintained by the SEC at Copies of the documents filed with the SEC by Lydall will be available free of charge on Lydall’s internet website at or by contacting Lydall’s primary investor relation’s contact by email at or by phone at 860-646-1233.

Participants in Solicitation
Lydall, Unifrax, their respective directors and certain of their respective executive officers may be considered participants in the solicitation of proxies in connection with the proposed transaction. Information about the directors and executive officers of Lydall is set forth in its Annual Report on Form 10-K for the fiscal year ended December 31, 2020, which was filed with the SEC on February 23, 2021, certain of its Quarterly Reports filed on Form 10-Q and certain of its Current Reports filed on Form 8-K.

These documents can be obtained free of charge from the sources indicated above. Additional information regarding the participants in the proxy solicitations and a description of their direct and indirect interests, by security holdings or otherwise, will be contained in the proxy statement and other relevant materials to be filed with the SEC when they become available.

About Unifrax
Unifrax is a leading global supplier of high-performance specialty materials used in thermal management, specialty filtration, battery materials, emission control and fire protection applications. Headquartered in Tonawanda, NY, Unifrax serves more than 4,000 customers through a global footprint of 31 plants operating across 12 countries. Unifrax’s portfolio of products, technologies, proprietary chemistries and processes have been developed from more than 70 years of deep application knowledge and innovation. Its products address mission critical energy efficiency, emission control, regulatory and fire safety requirements across the globe. More information is available at