Republic Paperboard Company LLC and Voith innovate curtain coater process to launch Republic’s coated Gypsum Linerboard production

The new product, Pigment coated gypsum board, produced using the new curtain coater system, which was built by Voith.


Voith supplied Republic Paperboard with a DF Coat curtain coater system, a stock preparation upgrade, new dryer cans, new reel and a new coater kitchen as part of a rebuild.

LAWTON, Okla./APPLETON, Wis. (Feb. 22, 2021) – Republic Paperboard recently installed and commissioned a new curtain coater system, which was built by Voith and will allow Republic to produce coated Gypsum Linerboard for the first time.

To achieve its goal to produce coated Gypsum Linerboard, the mill needed a new DF Coat curtain coater system that could efficiently apply a specialty finish. Voith’s solution for Republic is a new innovation that, instead of using expensive white fiber to get the needed color and finish, now uses a fiber base and applies a coating for color and finish.

Coated Gypsum Linerboard is appealing to the construction industry since it can be very costly to get the right color and finish onto wallboard. With the new DF Coat curtain coater process, the mill uses a fiber base while applying color to it.

''The opportunity to expand our business and produce coated Gypsum Linerboard more efficiently is a big win for Republic. By partnering with Voith for the development of this new process, we secured the expertise we needed to make it happen.'' - Ray Howard, President, Republic Paperboard

The effort by Voith and Republic to develop the curtain coating innovation was part of a larger rebuild project at the mill. Voith also supplied a stock preparation upgrade, new dryer cans, the coater system itself, a new reel and a new coater kitchen. Also part of the package was a winder rebuild. Further, a special bypass section was supplied that allowed the mill to produce uncoated sheet. These elements were primarily installed earlier in the spring of 2020, with final coater start-up taking place throughout the summer of 2020.

voith 22feb21 2Voith’s DynaLayer curtain coater.

“This project demonstrates how Voith can really help our customers develop and grow their business,” said David Buchanan, President, Voith Paper North America. “We have the knowledge, expertise and capabilities to help their plans come to fruition.”

Source: Voith