Type “H” Paste Flux

Paste and Powder FluxesType H ContainerView inside of Type H Container

Type "H" Paste Flux

  • Black flux
  • Contains no boric acid
  • Low corrosiveness
  • Used for all silver braze applications including stainless steels
  • Good for elevated temperatures
  • Washes off easily with water

Type “H” is a finely ground all-purpose boric acid free black paste flux for high temperature brazing with silver alloys. It readily dissolves unwanted oxides, inhibits further oxidation, and provides a clean surface needed for the ready flow of molten silver alloys.

The Gasflux Company recognizes that each brazing application is unique. We would welcome the opportunity to discuss your application and recommend the right paste flux that best meets your needs.



Black Paste

Filler Metal Type



High Temp/No Boric Acid

Temperature Range

1050 ºF – 1700 ºF
565 ºC – 925 ºC