DIY solder paste

Radio amateurs have long chosen such an innovation as solder paste. Initially, it was invented for soldering SMD components during machine assembly of boards. But now many people use this paste for ordinary manual soldering of parts, wires, metals, etc. It is understandable - all in one at hand. After all, almost actually solder paste is a mixture of flux and solder.

In fact, to make solder paste for the needs of ham, it will take not so much effort, time and ingredients.
To make solder paste we need:

1. Tin-lead solder bar;
   
2. Vaseline is medical. Used as a thickener;
   
3. Gumboil LTI-120 or other liquid.

I will make of these components. And ideally, it is better to take:

1. Tin-lead solder bar;
   
2. Solder fat. And if you find “active fat”, then it’s generally beauty.

How to make solder paste?

The whole process is unusually simple.
We start by grinding the solder. I took a thick tubular piece and began to grind it with a file, a file and a mechanical nozzle for a drill. What you will use is up to you. But I am for mechanics, since manual labor is too long and painstaking.


The smaller the crumb, the better. A small amount is required.

Then add petroleum jelly in a 1: 1 ratio and a bit of LTI flux (these two ingredients can be replaced with solder fat).


Mix everything thoroughly.


For better stirring, the mixture can be heated in a water bath or an ordinary soldering iron, reducing its heating to 90 degrees Celsius.
Next, for storage, we transfer the resulting paste into a syringe with a thick specialized needle. Or no needle at all.
On this paste is ready to use.

Solder paste test

Put a little paste on the soldering place and solder with a soldering iron.


Everything is soldered very carefully and practically without stains.

What fluxes and solders do you do? Write in the comments, I will be very interested. Thank!

Watch the video on making solder paste