Paste & Powder Fluxes

Paste & Powder Fluxes

The Gasflux Company manufactures a variety of brazing paste and powder fluxes for silver and bronze brazing applications. They include fluxes with no boric acid and that are less corrosive. Carefully formulated to help filler metals flow with low, medium, and high temperature applications, our pastes and powders work with ferrous, nickel, non-ferrous base metals, and aluminum 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 suits your needs.

Looking for just a list of our paste fluxes and powder fluxes? Please see the following pages:

Item Name Form Filler Metal Type Characteristic Temperature Range
Type "U" Paste Flux White Paste

BAg
BCuP

All Purpose

1050 ºF – 1600 ºF
565 ºC – 870 ºC

Type "H" Paste Flux Black Paste

BAg
BCuP

High Temp/No Boric Acid

1050 ºF – 1700 ºF
565 ºC – 925 ºC

Type "HW" Paste Flux White Paste

BAg
BCuP

All Purpose/No Boric Acid

1050 ºF – 1600 ºF
565 ºC – 870 ºC

Type "U-H" Paste Flux Black Paste

BAg
BCuP

Boron Modified

1050 ºF – 1700 ºF
565 ºC – 925 ºC

Type "G" Paste Flux White Paste with Slight Green

BAg
BCuP

Extended Heat

1050 ºF – 1600 ºF
565 ºC – 870 ºC

Type "T" Paste Flux White Paste

BAg
BCuP

No BiFluoride or Fluoride

1050 ºF – 1600 ºF
565 ºC – 870 ºC

Type "HW-T" Paste Flux White Paste

BAg
BCuP

All Purpose/No Boric Acid

1050 ºF – 1600 ºF
565 ºC – 870 ºC

Type "B" Paste Flux Blue Paste

RBCuZn

High Temp

1400 ºF – 2200 ºF
760 ºC – 1205 ºC

Type "CR" Paste Flux White Paste

RBCuZn

High Temp

1400 ºF – 2200 ºF
760 ºC – 1205 ºC

Type "G-1" Powder Flux White Powder

BAg
BCuP

Extended Heat

1050 ºF – 1600 ºF
565 ºC – 870 ºC

Type "HW-1" Powder Flux White Powder

BAg
BCuP

No Boric Acid

1050 ºF – 1600 ºF
565 ºC – 870 ºC

Type "H-1" Powder Flux Black Powder

BAg
BCuP

High Temp

1050 ºF – 1700 ºF
565 ºC – 925 ºC

Type "Bg-1" Powder Flux White Powder

RBCuZn

Granular Powder

1400 ºF – 2200 ºF
760 ºC – 1205 ºC

Type "B-1" Powder Flux White Powder

RBCuZn

Fine Powder

1400 ºF – 2200 ºF
760 ºC – 1205 ºC

Type "Al-1" Powder Flux White Powder

BAlSi

Aluminum flux – Fine Powder

960 ºF – 1290 ºF
515 ºC – 700 ºC