20-02-2021, 11:10 AM
I've never has great faith in Bakers Soldering Fluid. It should be an active flux (as opposed to a passive flux like tallow or resin) but is a bit too watery and weak IMHO.
If you have hydrochloric acid you can make your own flux by adding zinc clippings to a small quantity of the acid until all effervescent action stops. This is known as "killed spirits" and was traditionally the best flux for tinman's solder (60% tin,40% lead). It can be diluted a little with distilled water
All traces must be removed after soldering!
Even though the acid has been effectively neutralised by the process it remains very corrosive and should be used with care and stored in a glass stoppered bottle
If you want some zinc I have a bin-full of scrap zinc clippings available, send an SAE and I will return it with a piece to your postage weight limit.
If you have hydrochloric acid you can make your own flux by adding zinc clippings to a small quantity of the acid until all effervescent action stops. This is known as "killed spirits" and was traditionally the best flux for tinman's solder (60% tin,40% lead). It can be diluted a little with distilled water
All traces must be removed after soldering!
Even though the acid has been effectively neutralised by the process it remains very corrosive and should be used with care and stored in a glass stoppered bottle
If you want some zinc I have a bin-full of scrap zinc clippings available, send an SAE and I will return it with a piece to your postage weight limit.