How To Make Soldering Flux Liquid

Back to table of contents Low melting flux for soldering.

How to make soldering flux liquid. It works the same as the borax cone so needs to be mixed with water to create a smooth paste. The water is used to help dissolve the chemicals so your flux mixture will just be more or less concentrated depending on how much water you use. I tried making flux from pine gum literally scraped from a tree dissolved in 99 isopropyl alcohol overnight and dripped through a coffee filter.

Flux is used in soldering to remove oxides from the contacts of the parts to be soldered together. Rosin Flux is manufactured from a type of Resin obtained from pines and some other plants. Squeeze the Lemon into a cup jar STEP 2.

For flux for electrical soldering use rosin-based flux to make solid joints. Make your own liquid flux. The liquid is quick-drying soft and does not need the application of heat.

Once the solder flux is cooled be prepared to clean the solder flux residue in an appropriate time-frame. A key advantage of this liquid solder is that it eliminates the hazards and waste associated with organic solvent-based liquid fluxes as well as the removal of corrosive residues by washing. Its fairly think but seems to make a nice flux for SMT soldering.

Liquid flux is also very cheap and very available. After soldering you may find that the flux has left residue. You dont need to be precise.

For plumbing joints recommended acid flux when soldering pipes because acids are more prone to remove oxide layers. This is a noncorrosive liquid flux solder widely used for soldering ground wires to metal chassis forming hermetic seals as well as pot tinning of brass and copper parts. Even if you get the solder back to the correct consistency using a nonvolatile liquid such as liquid solder flux it will still have too much oxide in it that will cause the solder to not work correctly.