DAYROD 982, a flux-coated, low-melting solder rod, is designed for repairing aluminum heat exchanger components. The flux is noncorrosive, so the post-treatment of repaired items is not required.

Soldering uses alloys that melt below 840°F to join metals. Molten solder fills the space between surfaces to be joined, adheres to the surfaces, and solidifies. Typical soldering steps include: ...