Flux core weld question

More of an art than a science - discuss metalworking and welding here.



Fully Engaged
Posts: 182
Joined: Wed Jul 01, 2015 6:53 pm

Country:
USA
PostPosted: Wed Aug 31, 2016 8:18 am
Just bought a Lincoln 140 and planned on doing small work on my project car like filling holes (spoiler holes) and pulling a dent. I'm now reading flux core is a no no, but will I be ok using flux core to weld some washers on to my dent, pulling the dent, then grinding the surface clean? Will it still react with the paint?



Fully Engaged
Posts: 166
Joined: Sat Sep 04, 2010 8:22 am
PostPosted: Thu Sep 01, 2016 1:46 pm
are you asking if the paint will react to the flux core wire ? if so, no, you will be ok



Fully Engaged
Posts: 182
Joined: Wed Jul 01, 2015 6:53 pm

Country:
USA
PostPosted: Thu Sep 01, 2016 9:23 pm
Yeah. I'm reading the flux left in the weld will cause issues on down the road. It makes no sense to me, and I've talked to older guys who say the same but I've read a lot of guys online say it's a problem.

viewtopic.php?f=6&t=23727&hilit=flux+core

Read second post. I'm definitely not saying anyone is wrong, I just want to know what's going on.



Fully Engaged
Posts: 166
Joined: Sat Sep 04, 2010 8:22 am
PostPosted: Thu Sep 01, 2016 10:51 pm
your going to be grinding the weld smooth anyways, so any flux will be removed

User avatar

Board Moderator
Posts: 9878
Joined: Fri Oct 20, 2006 12:40 pm
Location: ARIZONA
PostPosted: Fri Sep 02, 2016 8:47 am
The quality of the welding does make a difference. Most guys will recommend MIG or TIG and solid wire for auto body work since it produces a cleaner job.
Many beginners don't produce proper welds and have lots of pits, pin holes and pock marks to trap flux in so it is safer to advise using the gas and solid wire.
1968 Coronet R/T


ACTS 16:31



Fully Engaged
Posts: 166
Joined: Sat Sep 04, 2010 8:22 am
PostPosted: Fri Sep 02, 2016 2:06 pm
'68 Coronet R/T wrote:The quality of the welding does make a difference. Most guys will recommend MIG or TIG and solid wire for auto body work since it produces a cleaner job.
Many beginners don't produce proper welds and have lots of pits, pin holes and pock marks to trap flux in so it is safer to advise using the gas and solid wire.

:goodpost:



Fully Engaged
Posts: 182
Joined: Wed Jul 01, 2015 6:53 pm

Country:
USA
PostPosted: Fri Sep 02, 2016 9:04 pm
That's pretty much what I thought. thanks.

Return to Welding & Metal Fab

Who is online

Users browsing this forum: No registered users and 28 guests