Chip Quik CQ100GeTM Germanium Doped Solder Wire Sn/Cu0.7/Ni0.05/Ge0.006 no-clean .020 1lb. This eutectic alloy has a uniform grain structure and produces bright shiny joints with no shrinkage. The germanium in our CQ100Ge alloy acts as an anti-oxidant which significantly reduces dross when used in solder pots and wave soldering machines. PRODUCT HIGHLIGHTS – No-Clean Synthetic Flux Core – The clear, non-corrosive, non-conductive residue is meant to be left on the board. – 2.0% flux core – Halogen content: None – RoHS 3 and REACH Compliant. Alloy: Sn99.244/Cu0.7/Ni0.05/Ge0.006 Melting Point: 227C (441F) 2.0% Synthetic Rosin Flux Core. IPC J-STD-004 Classification: ROL0.