QJ208 Environmental-Friendly Non-Corrosive Aluminum brazing flux is a hi-tech green product in the new century. Composed of chemicals including fluoride, it can be applied to several brazing methods such as gas furnace brazing or low-temperature torch brazing within 558～617°C. And, it can work together with aluminum-silicon-based brazing filler metals, brazing pure aluminum, aluminum-manganese alloys, etc., and present many advantages such as low melting point, rapid diffuse, strong permeability, clean-cut appearance free from residue, darkening and cleaning. At the same time, it is odorless, in noxious, pollution-free and non-corrosive as well as resistant to moisture absorption and agglomeration during application. After the proven application of many units, it?s superior to domestic similar products, and, with its sediment less than foreign similar products, it can become an ideal alternative to the products of foreign peers.