An Original Equipment Manufacturer (OEM) addressing the growing Flue-Gas Desulphurisation (FGD) market in China was experiencing short life time on the side entry mixer seals fitted to the scrubbers at the power plants. Power plant owners were facing high penalties hence a working solution was critical. With the understanding of the behaviour of the equipment and the consideration of the media properties being both highly corrosive and abrasive a working solution was designed. Over thousand units were installed with successful performance meeting not only the OEM expectations but also the power plant owners.