Control Freak subframe connectors?

Best picture I could find. Because the tubing is rectangular they fit pretty tight to the bottom of the car.

We did slit the the floor pan just a wee bit to keep it all tight then welded the slits up. 

billd wrote: How do you prevent rust with all those welds, especially in the frame channels, and those connectors?

If you look closely at the picture you can see some runs of what look like light green paint. It is frame coating. It comes with a plastic extension tube and a 360 spray head. The inside of the frame channels and the connectors got buried with frame sealer. Then the shell was rolled over on the rotisserie and yet more frame coating was applied. The outside gets treated with rust encapsulator before finish paint is applied.

billd wrote: I use rust converter myself........... then seal it up with a coating or paint, etc. I like to kill the rust, not bury it alive.

We also use the rust converter when needed.

Quoting Eastwood on their frame coating.

If you clean the steel to bare steel, prime then weld, you have the weld itself which is steel wire or rod, and the steel substrate which was melted to form part of the bond that will be unprotected.

You must deal with those areas - plus the steel that got hot enough to disturb the primer, etfc.

Weld-through isn't intended to be the final step in protection and does zero for the weld and adjacent steel.

On the floors I've repaired, I still had to treat surface rust, and prevent rust from forming AT the weld and the steel that got hot enough to allow fast rusting. 

I primed the floor after thorough cleaning of rust, used rust CONVERTER (totally different product than the so-called encapsulators) where there was any trace rust that I wasn't able to totally remove, primed with weld-through primer, then treated rust that may have been disturbed, then primed with self-etching primer, then painted - and underneath did pretty much the same then used undercoating. 

On my 70 we used rust converter (not encapsulator) and that was in about 2006 - and there's no trace or sign of any rust in 2018.

IMO, no single step or product will do what I want it to do long-term so I use multiple products.
In the case of these connectors, being basically a blind area after welded, I am not surprised, and glad to see he's sealing those up so that new steel should not rust. I would bet he's applying to waste, as they say - in other words, he's being generous. 

As always, thumbs-up to pit crew's work. 

So, when do I bring my 73 up for the connectors - since after I get the Cal-tracs put on my car will be under some different stresses.........