[star_ting]

Hello, this is my first technical question in this forum.

I was reading the Miller´s "TIG Handbook", and something interesting has appeared, the "Welding
Fluxes for GTAW" article. I need to improve penetration on my weld profile.

I have looked for some developer or distributor to buy it, but I haven´t found any TIG fluxes.

Has someone heard about one commercial TIG flux that improve weld penetration?

Thanks.

[noddybrian]

Well it was news to me they existed - I never heard of it improving penetration - only use I've seen is on the back of a stainless weld where a purge gas is impractical - " the other tig guy" recently did a video using it with what looked like good results - it was called " Solar Flux type B "
Don't know if it's available where you are - but it's on Ebay

http://www.ebay.co.uk/itm/171066040237? ... 1438.l2649

[Otto Nobedder]

Flux helps penetration the same way back-purge helps penetration. Keeping oxygen off the backside.

Pointless in most mild steel welds. Usefull for stainless welds where pack-purge is impractical. I don't use flux. If a weld requires backside protection (all stainless, and many 40xx series steels), I'll purge it. The one exception, and I haven't done it in years, is 400-series stainless for exhaust pipe, though I suppose flux might buy you an extra horsepower or two by eliminating "sugar" inside the pipe.

Steve S

[Markus]

There is flux for tig that will improve penetration and it's not same stuff that is used on root shield. I have not ever used it, but read about it too.

Here's one article about it
http://www.twi.co.uk/technical-knowledg ... uary-2000/

[weldin mike 27]

Hey,

There is also a flux cored tig rod, and as gimmicky as it sounds, is apparently a high end item used on piping systems where no other option is available. Such as a repair or the last weld on a sealed system. Kobe TDX is one I think. Behaves like a ss stick weld i hear.

Mick.