How to Solder Copper Tube to Stainless Steel

The YouTube video below uses Superior No. 520B.

No. 520B

View the product page for more information.

  • Superior Flux Number
  • Description
  • Radiator Application
  • Rec. Solders
  • Rec. Temp Ranges
  • SDS
  • Spec. Sheet
  • No. 520B
  • Zinc-free, bromide-based, amine salt flux. Concentrated.
  • Radiator core baking; header dips
  • 25Sn/75Pb, other Sn/Pb combinations
  • 260-425°C / 500-800°F
  • Link
  • Link
All radiator fluxes are RoHS compliant.