How To Make Soldering Flux

Table salt is one ingredient of homemade silver soldering flux.

How to make soldering flux. How to make solder paste flux and liquid flux - YouTube. Any dissolved oxides and dirt are moved out of the way by the flux to make room for the molten solder alloy. The citric acid flux you have made can now be used to prepare metal for soldering.

Flux is a wonderful goo that makes soldering faster and easier. To tin the tip with solder apply solder to the tip of the iron when it is hot. Apply flux to the outside to your pipes.

Finally the acid removes oxides by converting them to soluble metal salts. It is used when metal is melted and soldered. Once this has happened strain the mixture to remove the leaves and any other small pieces of debris.

Ways to Solder Without Flux. It removes oxidation from the surfaces to be soldered. Look around the edges of the pipe for any large lumps of flux and brush them away.

Mix together 60 ml 2 fl oz Borax 60 ml 2 fl oz TSP and 90 ml 3 fl oz of boric acid in a pan. This leaves a clean metal surface to which the solder can bond. Add your solvent start with a small amount and keep adding until you are happy with the way your flux behaves.

I found this great video on making your own flux for soldering. Metal workers artists and crafters all rely on flux to complete many of their projects. The solid flux needs to be melted to spread it evenly.