Is mild steel weld prep same as aluminum ? Meaning do I just wipe down with some aceatone and than hit it with a dedicated stainless steel brush ?

 

I just hit mine with a grinder to take off the mill scale, all you really need to do

 

Yup, gotta take off the mill scale and then you can wipe it down with acetone. Ready to go after that.

Whatever you do, don't use the same stainless steel brush with mild steel as you would with aluminum.

 

Sandblasting is my favorite way. I hate the vibration from grinders when you use them a lot. I think sandblasting is the fastest way, no wire brush or acetone bs.

Does not work well for stainless.

 

Other than sandblasting what dose work for stainless ? I dont have access to a sandblaster and stainless is gonna be my next project.

 

Why wouldnt it work for stainless? I acetone all my stainless stuff after prep before welding

 

Boosted_B_Series....................what are the steps for stainless prep. acetone and SS wire brush ?

 

I flap disc everything, wire brush it, then wipe it with acetone.

 

thats exactly what i did for the mild steel I used a flap disc to get the mill scale off than used a SS brush and some acetone. Is that the same process you use when welding satinless.

 

Im not sure why. I've tried it, it just welds like **** if you brushed it after the sandblasting it would probably be fine but that would defeat the purpose of using the sandblaster in tye first place.

For stainless i use a stainless wire wheel on a die grinder. Before i prep anything it all get washed with near boiling water to get the oil/coolant from the mill off.