I see messages about paste flux, and liquid flux, and homemade
flux etc. Can someone explain these to me as well as the advantages
and disadvantages, please
I self taught myself with paste flux, and it is all I have ever used.
Paste flux when heated turns white, and then clear. When it is clear,
put the solder where you want it while keeping it warm with the
torch, and it usually stays where you want it, if it moves you can
move it with a solder pick, and the flux acts as a glue to hold it in
place. When all the solder is in place then heat the piece to solder
temp. Just after it turns clear, if the temp is hot enough, the
solder flows. That it turns clear is a great indicator of when to pay
focused attention so you do not over heat. If the solder does not
flow quickly after the flux is clear, you do not have enough heat.
I have taught this to many people and everyone has had success.
My suggestion is to try different methods over time to find out
which way works best for you.
Richard Hart G.G.