Cleaning rust from frame

[jim gauthier]

Hi Folks,

I am new to this forum and am searching for some assistance. I recently
purchased a 68 convertible in nice but not mint condition. The frame is
solid but does have a bit of scaley rust at the end of the side rails. I am
hoping to get it cleaned off and then stopped from further erosion before
the structural integrity of the frame is compromised. (some time away as
even the rusty area is still solid). I harbor faint hopes of perhaps
entering a "survivor" series so I don't want to obliterate the frame and any
paint underneath with a harsh wire brush. I have heard a multitude of
suggestions from dawn to a castrol product (Super Clean) to navel jelly to rustuleom etc.

Does anyone have direct experience doing a similar project. I've got to
believe this is a very common issue among older Vettes.

Many thanks in advance,

Jim Gauthier

[Chuck S.]

Re: Cleaning rust from frame

Jim, I don't think you can accomplish any kind of "rust control" with the methods you are entertaining. Rust can not be removed with soaps or solvents. If the rust is superficial, then naval jelly may do a little good, but the area would still have to be refinished. If the rust is significant, then probably sand blasting will be the best removal method.

There is a product called POR15 (POR = "Paint Over Rust") that claims to seal rust from outside air which ordinary paint cannot. You remove the loose rust (probably using a "harsh" wire brush), apply a phosporic acid based prep solution, and then paint it on. Since POR15 is not UV resistant, it must be top coated with another paint.

Perhaps you should clean the car up well (soap only) and have the car judged. Request the 68-72 team leader evaluate the car for "Bow Tie" candidacy. If the car has a good shot, then do nothing for awhile until it goes through the Bow Tie judging. Afterwards, you can decide if you should remove the rust and spot refinish the frame.

If the rust is superficial, it may be a long time before frame integrity is compromised. But, I wouldn't waste too long. The problem with a "bit of scaley rust" in that area is like a problem with termites in your house...what you can see may only be the tip of the iceberg.

[Terry M.]

[jim gauthier]

Re: Cleaning rust from frame

Terry and Chuck,

Thanks great comments. I (as always) am in a rush to get things perfect. But it's taken 35 years to get to this point so a little patience seems in order. I do envision a phase two. IN terms of now how best to proceed.

Many, many thanks for the input!

Jim