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SIF Brazing Fluxes

Aluminium Brazing Flux, Low Melting Point Alloys

SKU FO120050

An aluminium brazing flux formulated for use on lower melting point aluminium alloys, removing surface impurities to improve weld performance.

Next day delivery available on UK orders · carriage & areas

Trade-only · No minimum order · Free UK delivery over £150.

Buying in bulk? Call us for volume pricing 01462 482200 Speak to the trade desk — sharper prices on larger quantities.
Part of the SIF range A century of welding consumables Explore SIF

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Aluminium Brazing Flux, Low Melting Point Alloys SKU FO120050

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Aluminium Brazing Flux, Low Melting Point Alloys

Frequently asked questions

What is Aluminium Braze Number 12 Flux used for?

It is an aluminium flux for use on lower melting point alloys. Like all fluxes, it removes surface impurities from the joint and improves the performance of the finished weld.

How do I apply the flux?

You can mix the powder with water to form a paste, which is then applied to the joint before brazing.

Why do I need a flux when brazing aluminium?

Aluminium forms a tough oxide layer that prevents proper wetting and bonding. The flux removes these surface impurities during heating so the braze flows and adheres correctly.

What size is the jar?

It is supplied in a 500g jar.

Is this the right flux for higher-melting-point alloys?

This particular flux is formulated for lower melting point alloys. Weldability SIF offers a range of fluxes to suit different applications, so ask us if you need one matched to a specific alloy.

How do I order and see prices?

Weldability SIF is a trade-only supplier, so prices show once you request a trade account. There is no minimum order, and UK delivery is free on orders over £150.

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Trade-only · No minimum order · Free UK delivery over £150. Request an account and get access to the full range.