stripping a patina Duster hood

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mad dog

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hey guys, like the title says ive been useing my D.A to strip the hood down to bare metal but because of the rust patina i have thousands of little rust spots left behind. What method do you guys use to remove the rust in the pits, i wish i could submerge it in evaporust... any advice is welcome and appreciated...Rich
 
Wire wheel, scotch brite discs or even a hand held mini sandblaster.
 
Once done wipe it thoroughly clean and get epoxy or etch primer on it asap or it will flash rust again
 
You’re in the right wave length with the Evaporust. You will need to neutralize any remaining rust that you can’t get into. Some used to use vinegar.
 
my epoxy gun is ready to fire, but first this rust issue.... i have some evaporust soaked paper towels on it now covered in plastic... not sure its going to work though thats why im asking for advice
 
Don't get too aggressive trying to grind out every little pit- the heat generated grinding on that big flat expanse of metal can cause all sorts of warpage, rippling and distortion. Work slowly.
If you don't get it all, soak some rags in vinegar or Evaporust and lay them on the areas for a day or so, a little plastic sheeting over the rags helps keep them from drying out. Thoroughly neutralize afterward, seal it and follow with high build to get it right.
 
my epoxy gun is ready to fire, but first this rust issue.... i have some evaporust soaked paper towels on it now covered in plastic... not sure its going to work though thats why im asking for advice
You're exactly on course as far as I'm concerned- I just type real slow and you beat me to the post!
 
would my hood be a good candidate for Ospho?
ive never used it and honestly dont know anything about it but i hear guys on this forum praising the results
 
would my hood be a good candidate for Ospho?
ive never used it and honestly dont know anything about it but i hear guys on this forum praising the results

Ospho is good stuff. I use it all the time. I recently used it along with plenty of fresh scotchbrite pads to help clean up up the cage and inner roof structure in my 66. I just wipe everything down with water and a fresh rag afterwards to clean up the residue.

Before:
upload_2022-9-4_15-45-43.png


After:
upload_2022-9-4_15-45-56.png
 
Ospho is good stuff. I use it all the time. I recently used it along with plenty of fresh scotchbrite pads to help clean up up the cage and inner roof structure in my 66. I just wipe everything down with water and a fresh rag afterwards to clean up the residue.

Before:
View attachment 1715980865

After:
View attachment 1715980866

What's amazing is not that it works, but that we can get it here in California!
 
I think a product like Ospho would work well for you. It will go into each little pit and turn the tiny dab of rust still in there black. Once this chemical conversion takes place, the rust is gone. Then follow the instructions for surface prep and primer. I did it on the roof of my car, and I have had no problems.
 
so it doesnt actually remove the rust in the pits?
 
my epoxy gun is ready to fire, but first this rust issue.... i have some evaporust soaked paper towels on it now covered in plastic... not sure its going to work though thats why im asking for advice
You have to use quality paper towels. Not the blue shop towels or what's in your kitchen. They need to lay real flat. The rust will be soaked up into the towel. CleN with a water based metal cleaner then a light media blast. Epoxy doesn't like acid and baking soda will change the ph too.
 
A0B13E50-2639-4D69-AE38-0BEA8770DD63.jpeg
I like rust mort. Brush it on and let it soak for at least an hour but reapply every 15-20 mins to keep it wet. Scrub with a stainless brush and rinse with warm water. Removes all the rust out of the pits. Might take more than 1 application.
 
View attachment 1715981033 I like rust mort. Brush it on and let it soak for at least an hour but reapply every 15-20 mins to keep it wet. Scrub with a stainless brush and rinse with warm water. Removes all the rust out of the pits. Might take more than 1 application.
In the long run that stuff can fail. You need to get rid of if the rust. It's a converter. It does not remove the rust.
 
On a side note. I was asked to refinish a Fresno. Been in the field for a hundred years. Solid rust. I hit it with permetex rust dissolver (it was called Extend back then) sealed it with Flash Bond XIM and Painted it with uncatylized enamel red paint. That was 27 years ago. It has been in the weather ever since. It is faded and just starting to peel.
 
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In the long run that stuff can fail. You need to get rid of if the rust. It's a converter. It does not remove the rust.

If you read the spec sheet it states that it can be used as a remover or converter. If you use it as I described it acts as a rust remover and all rust is removed like in the pic I posted. I would never use a rust converter.
05B03C2A-31B7-4370-A25C-DC11D75DD6ED.jpeg
 
If you read the spec sheet it states that it can be used as a remover or converter. If you use it as I described it acts as a rust remover and all rust is removed like in the pic I posted. I would never use a rust converter.
View attachment 1715981044
If it removed all of the rust, would it not look like shiny new metal?
 
In my pic all that’s left are the pits, no more rust. I would prefer blasting but that’s a pretty messy option!
I agree about the messy option. I'm missing the picture of no rust.
The messy option is unfortunately my only satisfaction.
 
View attachment 1715981033 I like rust mort. Brush it on and let it soak for at least an hour but reapply every 15-20 mins to keep it wet. Scrub with a stainless brush and rinse with warm water. Removes all the rust out of the pits. Might take more than 1 application.
What yo have going there will probably outlast all of us. Please hit it with some media blast and a good cleaning before the epoxy coat.
 
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