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 presents tarner remover. The tarner remover is a mild, water washable solution for pre-cleaning most metals used in the electronics industry. It is ideal for improving solder ability of pcb`s. It dissolves copper tarnishes and soluble, inorganic residues from plating solutions.