Aluminium Brazing Fluxes

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Product Uses and Applications

When brazing aluminium alloys in air it is necessary to use a brazing flux.

Three general formulations of flux are in regular use:

  • Fluoride based fluxes that have a narrow operating temperature range and non-corrosive flux residues
  • Fluoride based fluxes containing caesium compounds used for aluminium alloys that contain magnesium
  • Chloride based fluxes that have a wide operating temperature range and corrosive flux residues

VBC Group can supply each of these formulations depending on the requirements of the application.

Key ProductsWorking Range °CEN1045Product InfoKey Points
Meta-Braze AL 216C Flux Powder550-660FL10View product info

Meta-Braze AL 216C Flux Powder

Meta-Braze AL 216C Flux Powder is a chloride based flux suitable for air brazing of aluminium alloys with an aluminium-silicon braze such as Meta-Braze AL 112. Flux residues are corrosive and can be removed by soaking and washing in hot water (~60°C for 30mins).×

A general purpose aluminium brazing flux powder with corrosive residues
Meta-Braze AL 21C Flux Powder550-660FL10View product info

Meta-Braze AL 21C Flux Powder

Meta-Braze AL 21C Flux Powder is a chloride based flux suitable for brazing of aluminium alloys in a furnace or with a torch and utilising an aluminium-silicon braze such as Meta-Braze AL 112. Flux residues are corrosive and can be removed by soaking and washing in hot water (~60°C for 30mins).×

A general purpose aluminium brazing flux paste with corrosive residues
Meta-Braze AL NC Flux Powder570-660FL20View product info

Meta-Braze AL NC Flux Powder

Meta-Braze AL NC Flux Powder is a fluoride based flux suitable for brazing of aluminium alloys in a furnace or with a torch and utilising an aluminium-silicon braze such as Meta-Braze AL 112. Flux residues are non- corrosive and cannot be removed.×

A general purpose aluminium brazing flux powder with non-corrosive residues
Meta-Braze AL NC Flux Paste570-660FL20View product info

Meta-Braze AL NC Flux Paste

Meta-Braze AL NC Flux Paste is a fluoride based flux suitable for brazing of aluminium alloys in a furnace or with a torch and utilising an aluminium-silicon braze such as Meta-Braze AL 112. Flux residues are non- corrosive and cannot be removed.×

A general purpose aluminium brazing flux paste with non-corrosive residues