Can you use flux core mig welder or do you need gas? This is what I'm looking to replace: https://www.ebay.com/itm/93-11-LEFT...1:g:x-AAAOSwVllXHYnh:rk:5:pf:1&frcectupt=true
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Patch panel question.
- Thread starter markzrt1
- Start date
Jim greengo
Well-known member
You can use either,but it would be much cleaner welds with gas.
isb cornbinder
Well-known member
Flux core make too much heat and are not appropriate for sheetmetal welding.
racingtadpole
Well-known member
I have used both, turn the amperage down a bit if you use flux core. Yes you get a neater weld with gas but the reality is you aren’t really running beads much larger than a tack weld anyway to avoid distortion, and if you’ve been using flux core already you know the drill with the wire brush..
Jazz1
Well-known member
Your Lincoln would require a regulator for gas and of course a bottle of Blue Shield provided your welder has attachment for regulator?
You can install those corner panels with adhesive as well. No grinding.
You can install those corner panels with adhesive as well. No grinding.
Last edited:
Stooge
Well-known member
Can you use flux core mig welder or do you need gas?...
You can, but it wont be fun, especially with assuming how thin the patch panel metal will be, and how hot flux core burns. I did it a couple of times in the past, and know other people who have done quite a bit of it, but if its your first go around with car sheet metal/ rust repairs, its going to be frustrating as hell and theres going to be a lot of burn through holes.
if theres a receptacle on the back of your machine for a regulator, then you can convert it to gas, but some of the smaller machines can sometimes be flux core only.
like Jazz mentioned, money wise, panel adhesive could be a good option since you will not have to farm the job out or invest in converting your welding machine to gas and buying a tank.
isb cornbinder
Well-known member
I have a Lincoln welder that is about ten years old. How hard would it be to set up with gas?
Which model Lincoln. Lincoln have many models on the market and hundred of vintage units in use. Maybe you could use GOOGLE search to get some information. Lincoln have a customer help line and they may have some information. There is way too much chance of getting the incorrect information on a forum.
oldmxracer
Well-known member
How wold I go about using panel adhesive? Use some sheet metal and glue it from the back?
Jazz1
Well-known member
Good video. The adhesive I used to install wheel arches was FAST set, lay panel on and its bonded in less than a minute. I had a couple small holes drilled in panel as guides for placement. Some adhesive as used in this video are slower setting giving you time to move panel if necessary.
American Locomotive
Well-known member
Most of those Lincoln machines can be setup for gas welding with a ~$160 kit. If you e-mail Lincoln with your model and serial, they'll tell you exactly what you need.
K13
Well-known member
Hack work at best. Every repair I have seen done like this (and I have seen a lot) will eventually map through the paint because the areas that are bonded do not expand and contract at the same rates as the other areas of the panel.
finn
Well-known member
I used the adhesive on my new to me Ford plow truck.
I am not worried about the “mapping” K13 talks about.
It’s almost impossible to get more than five years out of replacement panels on a daily driver anyway before they are pinholes throttle bottom.
Welded new panels in the Chevy twice so far.
The adhesive is much easier, especially on the Super Duty since there are plastic parts inside the cab that are difficult to remove, and I don’t want to burn the garage down.
I am not worried about the “mapping” K13 talks about.
It’s almost impossible to get more than five years out of replacement panels on a daily driver anyway before they are pinholes throttle bottom.
Welded new panels in the Chevy twice so far.
The adhesive is much easier, especially on the Super Duty since there are plastic parts inside the cab that are difficult to remove, and I don’t want to burn the garage down.
isb cornbinder
Well-known member
Epoxy body adhesive is much stronger than some chicken poop welding with an imported Kitty Kat flux-core welder. If a person has a new car that was assembled in the last 20 years, that car will most likely be "glued" together. Wear nitrile gloves so you do not get the epoxy on your skin. Read and understand the instructions and warnings.
Kaizen
Well-known member
I used 3m panel bond on my truck. Not supposed to be used for structural stuff but i used it on my outer rocker panel to pass inspection about 5 years ago. never even finished it off. Still stuck great.
OP you need a special dual adhesive gun, the adhesive, and some tips that mix it when you dispense it. a little goes a long way. put the new panel over the old one. trim out the rot on the old one, trim down the new if you want, squeeze the adhesive on, put new panel over it, clamp or screw it down. i used self tapping screws. Next day take out the screws and put some body filler on it. Will save you hours of spot welding.
OP you need a special dual adhesive gun, the adhesive, and some tips that mix it when you dispense it. a little goes a long way. put the new panel over the old one. trim out the rot on the old one, trim down the new if you want, squeeze the adhesive on, put new panel over it, clamp or screw it down. i used self tapping screws. Next day take out the screws and put some body filler on it. Will save you hours of spot welding.
rsanter
Well-known member
Yes you can use flue core, as has been said, MIG is better and the flux core will be a bit hotter.
I recommend you get some copper to back up the weld seam. That will prevent blow through and remove some excess heat that can work against you.
They even make a special thin rod for ARC welders so,you can do sheet metal. Use it way back in the day, actually worked well.
The panel bond material of today is so good, there is nothing wrong with using that stuff
I recommend you get some copper to back up the weld seam. That will prevent blow through and remove some excess heat that can work against you.
They even make a special thin rod for ARC welders so,you can do sheet metal. Use it way back in the day, actually worked well.
The panel bond material of today is so good, there is nothing wrong with using that stuff
Kevin54
MEMBER EMERITUS
I'm for panel adhesive vs. a **** weld job. And when I say ****, I don't mean any disrespect, but what some think is proper, really isn't. Adhesives have come a long ways over the years. And with modern cars, I would go that route over welding just because of material thickness.