Orion Metis manufactures Rosin Free and Non-Tacky Fluxes. Orion Metis is an ISO 9001-2000 awarded company that also manufactures high quality Soldering Fluxes and Chemicals for the Fabrication of Printed Circuit Boards and Assembly of Electronic Components. Rosin Free and Non-Tacky Fluxes are used for electronic component assembly by wave, dip or spray application. The residues of these fluxes are minimal and non-tacky and may be left on the assembled PCB`s without cleaning. It contains a small percentage of Rosin preferred by some users and therefore the residues are slightly tacky.