How To Make Soldering Flux Paste

Solder paste flux is a gelatinous chemical compound used mainly in combination with solder powder to create solder paste generally mixed as a 5050 ratio.

How to make soldering flux paste. Add your solvent start with a small amount and keep adding until you are happy with the way your flux behaves. Some fluxes are corrosive so the parts have to be cleaned with a damp sponge or other absorbent material after soldering to. Flux is a must have product when doing any electronics work especially for surface mount parts.

Its my understanding that generally flux is just 25-85 rosin dissolved in 75-15 isopropyl. In the soldering of metals flux serves a threefold purpose. Then with a needle hold the part in place touch the tip of the soldering iron to the edge of the pad on the board that you are soldering.

Cover the container and allow the mixture to sit for at least 8 to 12 hours. Once this has happened strain the mixture to remove the leaves and any other small pieces of debris. I am waiting for a shipment of liquid flux currently and was just curious if this is a feasible hold-over.

DangPro shows you how to create your own solder flux. Once heated to the correct temperature the. Place the stencil over the board and apply the solder paste through this.

The tip of the iron is then heated up in order to melt the solder paste. Flux is a wonderful goo that makes soldering faster and easier. Place the rosin inside the jar if you cant wait for it to dissolve youd want to grind up the crystals to a fine dust this will vastly improve the time it takes to dissolve from hours to minutes.

It removes oxidation from the surfaces to be soldered. Add approximately 250 ml 1 cup of water to the ingredients in the pan. You have to make sure that you apply the required amount of solder paste.