Founded in 1952, Trelleborg Sealing Solutions was previously a part of the Smiths Group's precision seals business. This business, Polymer Sealing Solutions, consisted of four rubber units. These were Busak+Shamban, Dowty Automotive, Shamban and Forsheda. In 2003, Polymer Sealing Solutions was acquired by Trelleborg AB. The name Busak+Shamban remained with all marketing locations, but the manufacturing locations became known as Trelleborg Sealing Solutions. As of April 2, 2007 the Busak+Shamban name was retired, with all locations being brought under the Trelleborg Sealing Solutions umbrella.