Rust Opinion - Vintage Mustang Forums
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post #1 of 22 (permalink) Old 06-10-2019, 07:34 PM Thread Starter
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Rust Opinion

This a pic of the inside of the outer rocker. Looks like mild surface rust to me, but I'm looking for other opinions. I was thinking of wire wheeling it and then coating with Master Series Silver or epoxy. Good idea? What do you guys think?


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post #2 of 22 (permalink) Old 06-10-2019, 08:14 PM
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When the rust leaves a depression in the metal itís no longer surface rust, thatís my opinion. Your best bet for the longest repair is to blast the rust out and epoxy prime. Nobody will ever convince me applying a coating over the top of rust works.


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post #3 of 22 (permalink) Old 06-10-2019, 08:31 PM
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The side doesnít look too bad. The bottom looks like it may have some damage. I agree with Caper, if you can blast it, that would be best. If not, wire wheel, or whatever you can to get it clean. Treat it with Ospho, then epoxy prime, or use Master Series Silver.

Be careful when welding etc. The rockers were galvanized and can give off toxic fumes.

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post #4 of 22 (permalink) Old 06-10-2019, 08:32 PM
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Look itís lasted for 50 years unprotected. Wire brushing and coating has to be better than nothing. You can blast and epoxy, sure. But, unprotected, paint on or sprayed, all will probably outlast you. If your prepping for your grandkids, you better epoxy. 😉


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post #5 of 22 (permalink) Old 06-10-2019, 08:53 PM
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Looks like just minor rust staining... I see no heavy rust damage... Just sand, seal and prime it..

)

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post #6 of 22 (permalink) Old 06-10-2019, 10:48 PM Thread Starter
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The bottom is actually pretty clean. No rust at all. The orange you see is from the reinforcement pans for the Convertible. They had some pretty serious rust almost welded to them from the floor pan where itís sandwiched between it and the inner rocker. Rust dust. Iíll post a few more pics.

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post #7 of 22 (permalink) Old 06-11-2019, 09:29 AM Thread Starter
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Here's a few more pics.






Troy Arave
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post #8 of 22 (permalink) Old 06-11-2019, 10:49 AM
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I agree with Flade, mechanically clean as best you can, treat it with a converter/Ospho type product, then seal it with something like MS or Rust Bullet.

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post #9 of 22 (permalink) Old 06-11-2019, 08:34 PM Thread Starter
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Sounds like thatís the plan then. Thanks everyone.
Grimbrand likes this.

Troy Arave
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post #10 of 22 (permalink) Old 06-14-2019, 08:52 PM Thread Starter
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Where can you buy Ospho? Should have ordered some I guess but I didnít. can you pick it up at Home Depot or Loweís or something?

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post #11 of 22 (permalink) Old 06-14-2019, 10:53 PM
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I bought some last week at the local Ace Hardware. It was in the paint dept.
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post #12 of 22 (permalink) Old 06-15-2019, 08:02 PM Thread Starter
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Couldnít find any local. Ended up using Permatex rust treatment in a spray form that I had in the garage. Hope I didnít screw up. If I did I can always take it off I guess and use something else. Got 99% of the rust off then sprayed the Permatex on it. Turned the whole thing black. Figured Iíd top coat it with the Master Series silver.

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post #13 of 22 (permalink) Old 06-15-2019, 08:37 PM
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It likely got it. Phosphoric acid is what you look for, same as in CocaCola and most every Rustoleum product.
I think Naval Jelly is the best form of it. I get from Atozon rather cheaply.

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post #14 of 22 (permalink) Old 06-15-2019, 10:11 PM Thread Starter
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Doesnít say it has phosphoric acid in it. Just says acetone, butane and some other flammable thing. Looked online for whatís in it but it seems to be a secret.

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post #15 of 22 (permalink) Old 06-15-2019, 10:20 PM
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Ospho/Phosphoric Acid or, if you can't find it, Naval Jelly. Wipe excess let dry, weld it back up then epoxy prime or Master Series Silver using a 360* spray wand through the drain holes. While still "semi-wet", open up the drain holes with a Q-Tip so they don't get painted over.

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