I wipe off with acetaminophen
Predictive textErr, that is paracetamol.
Acetone and a spell checker?
Does wiping with acetone really make much differnce, really?
Does wiping with acetone really make much differnce, really?
I get what you are saying.Welds in Aluminium are always porous so whatever you can do to reduce the porosity is a positive....finger marks and foot prints on plate will promote porosity.
The first 3 actions when welding Aluminium are Clean it, Clean it again and Clean it again........and unless you weld it straight away....clean it again.........(it will oxidise and the oxide absorbs moisture and that produces porosity)