aluminum soldering flux
It is entirely non-chloride organic flux. It aids wetting, thereby making all the alloys easier to solder. In some instance even eliminate the need of pre solder cleaning. It removes the tough oxide film on the aluminium, shield the bare metal from contact with the air and oxidation, and promote base metal wetting and solder flow.
bga flux
SMT Rework Flux from Interflux Belgium Model IF-8300 is gel flux with High tackiness. It has helps in holding SMD component during soldering. Excellent solderability and evaporate if enough energy is applied. Flux is Ideal for BGA Soldering. For detail down load PDF??.. From:IF Belgium