MaAnt MY-223A Halogen-Free SMT Soldering Flux 

According to a product listing on Phoneparts, MaAnt MY223 A Flux Paste 10 ml / 10 cc is:

• A high viscosity, no clean flux specially formulated for PCB, BGA, and PGA rework—particularly for soldering and reballing of computer and phone chips. 

• Described as comprised of a mixture of high?quality alloyed powder and resinbased pasty flux, designed to avoid pale yellow residue. 

• Highlighted for its excellent immersion, high strength joints, and ease of post?process removal (“easy to peel off with hands or tweezers”), leaving no residue. 

• Claimed to be non?toxic, non?corrosive, highly insulative, with good insulation and a smooth welding surface. Moreover, it’s said not to deteriorate or dry out, nor cause oxidation of gold, copper, phosphorus, bronze, etc., and to prevent contamination during assembly.