How To Make Aluminium Soldering Flux

You have to use a big iron because the aluminium is of course acting like a heat sink.

How to make aluminium soldering flux. Cover the container and allow the mixture to sit for at least 8 to 12 hours. You can now use the pine tar-alcohol mixture as your flux. The SIF Aluminium flux is used as a temperature indicator and can be applied via the rod or applied direct to the workpiece as a paste made by mixing the flux with water.

Do nothing until all of the juice has strained through. Long Shelf Life Balanced Composition Effective Amount. DangPro shows you how to create your own solder flux.

What makes rosin so special as a solder flux ingredient is that it combines in a single substance that is basically naturally-occurring the main properties a flux needs to have. Place the strainer in the kitchen sink for washing later. I dont know the exact chemistry of this method but it worked for me to solder aluminium wires but not thin foil.

Sometimes it works sometimes it doesnt. In previous videos we compared different types of commercial flux but did you know its possible to make a simple and effective flux at home. The solder will not cling to the surfaces and the oxides will break away causing the joint to fail.

Once this has happened strain the mixture to remove the leaves and any other small pieces of debris. A flux for soldering aluminum and other nonferrous metals and iron to the same or different metals comprising 50-70 PERCENT EPOXIDE RESIN 15-30 PERCENT ROSIN 12-18 PERCENT TRIETHANOLAMINE AND 3-5 PERCENT OF A HEAVY METAL FLUOROBORATE OR BORON TRIFLUORIDE MONOETHYLAMINE AND OPTIONALLY AN AROMATIC AMINE OR AMIDE. Then resolder the same connection with some neutral flux.

The citric acid flux you have made can now be used to prepare metal for soldering. The alcohol will dissolve the pine tar from the leaves. As the screen material had to be sandwiched between two of my aluminium frames there were two identical frames for each opening.