a water soluble flux composition includes a vehicle portion of polyoxyethylene - polyoxypropylene block copolymers and their adducts of trimethylolpropane along with an activator portion of tetrakis hydroxyalkyl derivatives of alkalene diamines such as n , n , n &# 39 ;, n &# 39 ;- tetrakis ethylenediamine and / or a long chain alkyldiethanolamine , such as polyoxyethylene soyamine .