New XRF fusion fluxes are now available at SCP SCIENCE. With a high bulk density of 1.4 g/cm3, compared to other fluxes some as low as 0.5 g/cm3, crucible volume is dramatically reduced and the risk of overflowing during agitation is eliminated. SCP SCIENCE fluxes are supplied dust free, in homogeneous spherical vitreous particles with less than 0.05% moisture. This combination of physical characteristics contributes to ease of use and improved analytical accuracy