Opinions needed on removing rust, underside of hood.

[mustang2]

The center of the hood of course is not a problem, I can get a wire wheel to that. My dilemma is the rust underneath the supports.
I have been reading about rust removal methods.
One method using the Muriatic Acid bath. Another method using the Electrolytic Derusting, where you use a mild electrolyte and a battery charger, which is'nt really suitable for an item this large, as far as I can figure out.

I would really appreciate your opinions on how to go about this, I really don't know which way to turn.

Replacement is not an option, the hoods in the boneyards are worse than this one, shipping is to high for one on ebay.

Just to give you the whole picture, the top side of the hood is fine, I have already sanded it down to bare metal like the rest of the car and primed it.

Here's the pic.

 

[dmoody]

Sandblasting is the way I'd go. You can buy those tanks for outdoor sandblasting along with 50lbs of cutting material and you're ready to go -OR- you could get someone to sandblast it for you. If you belong to a car club you might find someone who would help you out for cheap otherwise look for a shop somewhere that does blasting.

d

 

[Mstng2]

Yea sandblasting or media blasting would be the way to go. That hood looks almost like a car fire hood, Ever have an engine torch under it?

 

[mustang2]

That hood looks almost like a car fire hood, Ever have an engine torch under it?

I was kinda thinking the same thing the way it's concentrated in the center then expands out. I don't know though, I've only had the car 6 months, only started it a couple of times, I've been restoring it since I got it, one area at a time.
The hood is straight though no warpage, so if it was a fire, it did'nt get to hot.
Will sandblasting be able to get in under the braces?

 

[dmoody]

Sandblasting will get anything you can see. I've never had a need for anything more.

d

 

[HaveII]

I sandblasted the bottom of mine along with the rest of the engine compartment, but I would advise high caution. The metal on these hoods is thin and will warp. I found out the hard way. We used all the same equipment, pressure, etc. to strip a 67' fastback and a 66' Chevelle (everything inside and out) and there was zero warping. My 75' hood looks like it's fiberglass now as you can see where all of the understructure is from the top. It will need replaced when I redo the paint down the road.

 

[dmoody]

Couple of sandblasting tips I've discovered...

1) Keep your pressure fairly low. I like to use 50-70 psi with lots of cfm.

2) Choose a cutting material appropriate to the gauge, material, etc of the part you are blasting. You can always touch the part to see how much heat you are generating while you are blasting.

d