Gypsum plasterboard

The addition of lignin to a plaster suspension for natural and REA plasters significantly liquifies the slurries.

This means that, given an equal ratio of water to solids, the viscosity of the slurry is significantly lower when the dispersant magnesium lignin is added. The slurry can therefore be more easily processed by the production equipment.


Lignin is a major component of wood and is one of the most abundant natural organic wood polymers which provides a multitude of functionalities.

Our lignin is used in a variety of industrial and agricultural areas for various applications.

Contact the Sappi lignin team for more information.