Here is a related question. I still have a sheet of pewter from
years ago but have forgotten what flux is used. Surely someone here
I was always told beeswax, by reliable sources to.
You only need a mild flux not an acid one-- a regular rosin paste
flux will do. For pewter the best supplier is:
for pewter use “Killed Spirits”, which is zince chloride solution.
Available as a liquid flux at most plumbers merchants.