This can be done with a mig correct ? Do I need to grind away at the coating first ? And not in breath the fumes right, am I missing anything else ?

 

Anyone ?

 

u can weld it w/ mig. Just clean it as usual. Brush it a few times whatever.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CRXDrew &raquo;</TD></TR><TR><TD CLASS="quote">u can weld it w/ mig. Just clean it as usual. Brush it a few times whatever.</TD></TR></TABLE>

Thanks, I thought so but I just wanted to make sure.

 

Heh, no prob. If you couldn't I sure proved everyone wrong w/ my downpipe.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CRXDrew &raquo;</TD></TR><TR><TD CLASS="quote">Heh, no prob. If you couldn't I sure proved everyone wrong w/ my downpipe. </TD></TR></TABLE>

Well I did not know if you had to grind the coating away.

 

you dont *have* to grind the coating away. I've welded lots of it without removing the coating. It sure welds alot better when you do though...

 

PLEASE weld it out side.

 

i mainly use a wire brush to get it off. if you weld it with the coat still on, do it out side. if not, the gasses will get under you mask, and irritate your skin. makes yoru skin feel "sun burned" and makes you get bags under your eyes. so do it outside.

 

It will weld, most definately. For tig, you will have to grind that sucker down.

But Mig, yes, weld it, but do it outside or in a nicely vent area.

 

If every Jim-Bob and Billy-Ray that works at an exhaust shop can do it, surely you can do it!

 

I'll just grind the coating off. But will I be able to tell when the coating is all off ? I mean is it visible ?

 

The coating is less than .001" thick. Just turn the amps up and burn through it.
If you INSIST on removing it, just use some 80-grit sand paper, wrap around the pipe, grasp your hand around it, and turn the pipe back and forth a few times.

 

Well I can't really weld it outside so I have to take the coating off

 

Clifton is correct. If you clean your work with a wire brush anyways you will take the aluminum silicon coating doing that alone. This isn't a galvanized pipe which would make a mess and excessive harmful fumes.