[TheForge] Forge welding cable

[James Binnion]

On Aug 4, 2010, at 4:00 PM, Jerry Frost wrote:

> I like 1pt Boric acid to 3-4 pts borax as a flux. I don't know why  
> but it
> seems a little more effective but that might just be me.

That is because boric acid begins to melt at  340 F once it melts it  
begins to act as an oxygen barrier. It will not begin to actively  
dissolve oxides till much higher temps around 1100 F or so but it  
provides a good cover until then. Borax on the other hand does not  
melt till it reaches 1370 F so there is a lot of time for the work to  
oxidize before it glasses up and covers the work.



James Binnion
jbin at well.com