i was wondering how do you guys back purge? welding up a turbo manifold as an example

 

https://honda-tech.com/zerothread?id=1459690



Duct tape.

 

you always weld in close proximity to your acetone jug?

 

Hell yes, I usually soak my gloves in it and douse it all over my clothes before I weld also.

 

aluminum foil is sweet

 

I built my own purge plugs
Consturcted of High Temp Silicone (rated to 800f) basically they are freeze plugs, that handle great heat, just stick the hose on one side and let air blead out the other, there is a whole drilled in the bolt holding them all together, I could build and sell these for $15 shipped per set (set is 2) I have welded with 120 amps 1" away from these without them even getting soft, they have not caught fire, or moved at all. Here is some pics of them



-James