SMD Solder Wire Chip Quik SMD Solder Wire is a no-clean, water-washable, halogen-free solder wire with a synthetic flux core that requires no refrigeration. This solder wire is offered in leaded and lead-free versions with diameters of 0.5, 0.8, and .38mm (lead-free models). Chip Quik SMD solder wire is available in 8oz and 16oz (1lb) quantities, with various melting points and composition levels of tin, lead, silver, and copper.