Ract The mould flux is a mixture of non-metallic oxides that. in contact with liquid steel melts. becomes a liquid slag which the mainly function is to lubricate and control heat transfer between mould and strand during the continuous casting process. The mould flux without fluoride has the advantage of decreasing the wear of machine and the SEN in comparison to common mould flux. https://www.ealisboa.com/top-sale-AR-10-Vert-Monoband-Indep-10m-2-Ringo-quick-deal/