National products manufactures a range of quality and high performance solders, fluxes and pcb chemicals used in electronics, instrumentation, automobiles, telecommunication, computer and other allied industries. National products offers np dross reducer for wave soldering machine. Np dross reducer is a white, odourless, easy to use product. It chemically reduces dross on solder bath releasing useful solder, back to the bath without affecting the solderability of the solder.