Indium Corporation uses only “conflict-free” and grade A (per ASTM B32) metals, as well as other high-purity metals for its flux-cored wire. Our materials have been tested and certified to meet IPC J-STD-004B and other relevant industry specifications, including the legacy military specification QQ-S-571f. Indium Corporation’s flux-cored wire is well known for its:

• Void-free
• Evenly layer winding
• Low oxide shiny appearance over time
• Non-offensive odor for the 800 series and 200 series fluxes

Indium Corporation has developed a range of flux-cored wire solutions to meet the needs of virtually every electronic assembly and rework operation. Flux-cored wire solutions are created when the desired alloy, cored-wire flux, and flux percentage are combined into a void-free, perfectly layer-wound package that can be easily used for both hand soldering and automated wire feed solder. Indium Corporation prides itself on providing the industry’s widest range of flux-cored wire solders for both standard electronic assembly as well as highly specialized needs. No application is too large or too small.

CW-802 Low Activity No Halogen Added No-Clean

While very small amounts of halogen (<500ppm) are perfectly fine and considered halogen-free for virtually all electronic assemblies, some electronic assemblers want a formula that eliminates as much halogen as possible. CW-802 was created with this in mind. However, it is recommended only for applications where no halogen is a must, the surfaces to be soldered are in pristine condition, and the process is well-controlled.

The J-STD-004B copper mirror test is performed per IPC-TM-650 method 2.3.32. To be classified as an “L” type flux, there should be no complete removal of the mirror surface. CW-807, CW-807H, and CW-802 show no complete removal of the copper mirror and, therefore, are classified as a ROL0. CW-807M shows minor removal of the mirror surface, therefore, can be classified as an “M” type flux.

Copper corrosion is tested per IPC-TM-650 method 2.6.15. This test gives an indication of any visible reactions that take place between the flux residue after soldering and copper surface finishes. With CW-807M, there is a minor amount of color change, acceptable for an “M” type flux.