DealsClearlake-backed Unifrax to buy Lydall for $1.3bnUnifrax, which is backed by Clearlake Capital, has agreed to acquire Lydall for about $1.3 billion.ByIris Dorbian21 June 2021•5 mins readJavaScript is required to read this article. Please enable it in your browser and reload the page.DealsIndustrialsManufacturingBriefs