Trostel Compounding Whitewater Wisconsin | Preferred Compounding CorporationBARBERTON, OHIO – Preferred Compounding (Preferred) has acquired Wisconsin-based Trostel Ltd. (Trostel). Trostel is comprised of two divisions, the custom rubber compounding business Trostel Compounding and the value-added specialty molding business Trostel Molding. The acquisition of Trostel expands Preferred’s mixing capacity, geographic reach and high-performance compounding capabilities. Terms were not announced for the deal, which is effective December 1.

Trostel has significant expertise in compounding and molding FKM, HNBR and other high-performance elastomers. The Trostel Compounding business in Wisconsin will be integrated into Preferred’s North American operations and the plant will operate as Preferred Compounding – Whitewater. Trostel Molding will retain the Trostel brand-name and continue its current operations as a standalone division of Preferred.

“Trostel is a high-value added company that shares our commitment to consistent quality, technical excellence and high levels of customer service,” said Ken Bloom, Preferred president and CEO. “This acquisition is a perfect fit for us to expand our geographic reach and our ability to comprehensively serve our customers.”

Preferred is the second largest custom rubber compounder in North America with mixing operations in Ohio, Georgia, Tennessee, Mexico and now Wisconsin. Other recent growth initiatives include signing a lease in October for a second building in San Luis Potosi, Mexico, and bringing online a second Farrel F-270 at its Tennessee operation in February, doubling capacity at that plant.

Preferred and Trostel Compounding supply proprietary and custom mixed rubber compounds and components for automotive, industrial, oil and gas and other markets. The Whitewater plant mixes advanced polymers including FFKM, FKM, HNBR, AEM – Vamac, ACM, ECO, XNBR, CR, EPDM and more.

Also like Preferred, Trostel has a staff of chemists and material engineers and provides significant value-added services including polymer selection, compound development and testing and manufacturing setup support.

Quarton International advised Trostel.

About Preferred Compounding

Preferred Compounding ( supplies proprietary and custom mixed rubber compounds to customers including molders, extruders, mixers and others in the rubber goods market. Primary industries served are automotive, construction, power generation and roll goods. The company is owned by members of its management team and Audax Private Equity.


Jerry Pignolet, Power Marketing/PR: 440-527-0446,
Marc Pignataro, Vice President, Sales and Business Development, Preferred Compounding: 330-798-4960.