COMET CENTRAL

So after some major pitfalls with the car's rust issue, which is far worse than initially thought, I've been working on the floor. The tunnel part is quite pitted, but it is strong as I can tell. If I made sure to get more of the rust out (unsure how yet, maybe chemically?), could it be welded to? Note I am MIG welding this and have a bit of experience with it (but not too much, but I know the basics and have welded things as needed before).

I've been given a few pieces of advice: white vinegar to neutralize the rust and/or a rust encapsulator. Can that be welded to?

Here are some resources I bookmarked. I've used the POR15, but none of the others.

viewtopic.php?f=23&t=13105

https://www.kbs-coatings.com/stop-rust-paints.html

https://por15.com/

Jim

Jims65cyclone wrote: ↑

Fri Jul 23, 2021 11:32 am

Here are some resources I bookmarked. I've used the POR15, but none of the others.

viewtopic.php?f=23&t=13105

https://www.kbs-coatings.com/stop-rust-paints.html

https://por15.com/

Jim

I have quite a bit of experience with KBS products and highly recommend them. Preparation is the most important step in any process.
Jim

zooooot wrote: ↑

Fri Jul 23, 2021 5:54 am

I've been given a few pieces of advice: white vinegar to neutralize the rust and/or a rust encapsulator. Can that be welded to?

though I'm not a pro welder I think it's better to sand it down to bare metal where the welds will be, then coat it after welding. might not be healthy to weld thru some chemicals. with the exception of ''weld thru primer''.

Time for angle grinder, Zoot. Clean and shiny will hold the welds.
Used to stick weld a bit when I was young and as Jim said, prep is everything.

Joe

Joe Travers wrote: ↑

Fri Jul 23, 2021 1:53 pm

Time for angle grinder, Zoot. Clean and shiny will hold the welds.
Used to stick weld a bit when I was young and as Jim said, prep is everything.

Joe

Yup. I used an angle grinder to get that far with wire wheels. I'll keep going to see where it can get me. I suppose it really only needs cleaned thoroughly close to where the welding will happen anyway.

The edge of the pan above the emergency brake lever, to the right is looking good.
Keep on truckin'.

Joe

Joe Travers wrote: ↑

Fri Jul 23, 2021 8:13 pm

The edge of the pan above the emergency brake lever, to the right is looking good.
Keep on truckin'.

Joe

Thank you Joe. Just want to confirm guys, 60-63 falcon and comet inner chassis parts (frame and such) can interchange to my knowledge correct?

XIONLAB 2 in 1 Rust Converter & Metal Primer but you can't weld to it. I applied to areas surrounding where I welded and areas I wasn't welding to. For example the inside of the trans support and subframe. I cleaned off the area with a wire disk to my angle grinder but that often opened up more area. My response probably isnt what you are looking for here but it's good stuff where you're not welding.

I know this is sorta the wrong way to do a patch (instead of butt welding it flat), but I wanted to try something on the car. I primed both sides with weldable primer so it's sealed and started tacking it in. Any tips for patching like this if I need to on other parts? I noticed it was a lot more spotty welding to the car than it was to new steel (which I actually am doing decent on). Bad grounding here maybe? I will most likely end up redoing this spot.

Weld thru primer is a little tricky with MIG


,, simplest way I've found for my own novice bodywork thin steel panel patches was clamping slightly larger piece than hole, cutting with angle grinder or saw, fastening 'welding clamp's', and 'Easy Grind" MIG wire while using a copper weld backer.

The 'weld clamps' are available from Eastwoods to 'Horror Freight' also Copper weld backers (or a bent piece of copper tubing. Ground smooth and sealed.

have fun

.. .

. .

. .

power band wrote: ↑

Sun Aug 08, 2021 4:21 pm

Weld thru primer is a little tricky with MIG


,, simplest way I've found for my own novice bodywork thin steel panel patches was clamping slightly larger piece than hole, cutting with angle grinder or saw, fastening 'welding clamp's', and 'Easy Grind" MIG wire while using a copper weld backer.

The 'weld clamps' are available from Eastwoods to 'Horror Freight' also Copper weld backers (or a bent piece of copper tubing. Ground smooth and sealed.

have fun

Thanks! I figured the primer was somewhat related because my practice pieces turned out pretty well compared to this. I'll give all of this a shot.