Preferred Compounding, a large custom rubber compounder headquartered in Barberton, said Monday it has acquired Kleen Polymers of Wadsworth.

Kleen Polymers is a custom rubber compounder specializing in non-black elastomeric compounds.

The acquisition expands Preferred’s mixing capability in “ultra-clean color, high performance compounds,” Preferred said.

Terms of the deal, effective Monday, were not disclosed.

Rick Marefka, principal at Kleen Polymers, will remain with the company and join the Preferred management team, Preferred said.

Preferred is the second-largest custom rubber compounder in North America, with mixing operations in Ohio, Georgia, Tennessee, Mexico and Wisconsin. Other recent growth initiatives include signing a lease for a second building in San Luis Potosi, Mexico, and bringing online equipment at Preferred’s Tennessee operation that allowed for capacity there to be doubled.

The company supplies proprietary and custom-mixed rubber compounds to customers including molders, extruders, mixers and others in the rubber goods market.

Preferred Compounding primarily serves the automotive, construction, power generation and roll goods industries.