What’s up with the Plugs? Back purging stainless steel is the process of flooding the backside of a weld joint with an inert gas—usually argon—to remove oxygen and prevent oxidation during welding. This keeps the weld root clean, shiny, and corrosion-resistant, which is critical for high-purity piping, food-grade systems, and pressure vessels. @tigaesthetics #BNMBuilt #bnmmanifold #bnmtwinscroll #bnmfabrication #bnmfamily #bnmspecial #builtWrx #builtsubie #builtsubaru #builtsti #wrx #workhard #w

5.1K views · 71 reactions | What is back purging and why is it...