Newbie Needs Help
Posted: Mon Jul 18, 2011 8:38 am
Can I use 75/25 mix for Alum, same as I use for steel, or what do I need??? Thanks for your help !!!!
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Re: Newbie Needs Help
Posted: Mon Jul 18, 2011 5:51 pm
No you can't use any CO2 when welding aluminum. You need to use 100% argon or possibly for thicker aluminum a 50/50 argon-helium mix. Carbon and aluminum do not go well together.