Qualitek utilizes state-of-the-art wire extrusion and wire drawing machines to manufacture low residue/fine diameter wire solders. Many of our formulations use the latest in no-clean/low residue technology found in our solder pastes and solder fluxes. We also developed our flux core manufacturing process to eliminate flux voids and irregular wire. Formulations available for: No-Clean, Water-Soluble, Rosin Mildly Activated, Super Activated Resin and Rosin Activated. Solid wire is also available. Qualitek wire solders meet or exceed J-STD-004B.