Flux for soldering..Don't know what to buy..

euan

Careful boys. You might get a telling off 

LastMantra

CE1 said:

LastMantra said:

Usually the main problem when soldering larger things like pots is getting them hot enough. Sounds like the op might need a more powerful iron?

Quite possibly, or the shape of the tip. I have a pointy one (very technical I know) for most stuff and a wedge shaped one that works well on pots as the contact area is greater.

Or even a stubbornly dirty/dry tip. Another good thing about having a separate tin of flux is you can dip the tip of your iron in to clean it. 

I generally use a round tip with a flat face on one side. Never got on with pointy ones.

BillDL

LastMantra said:

Another good thing about having a separate tin of flux is you can dip the tip of your iron in to clean it.

That's exactly what I do.  I have a small tin containing some of that copper spiral swarf for twisting the tip in, but in between that I just dip the tip into my tub of old flux to freshen it.  The flux in the tub does get manky though.