EnviroMark 919G Pb-free solder paste is reportedly 100% halide- and halogen-free. Said to offer ultra-low voiding characteristics, lighter flux residue color, easier residue penetration, shiny joints and excellent solderability on all components and board finishes. Prints to 0.4 mm pitch. Said to reduce potential defects such as bridging, solder balls and tombstoning.

Kester, www.kester.com