[Boatanchors] "Rust Converting" Paint- Good? Bad?

[J. Forster]

I have a circular, wrought iron outdoor stairway and a bunch of wrought
iron fences. I tried a conversion coating for the rust with only poor
success. It looked all lumpy and I didn't think the surface was properly
sealed against new england weather.

So, I took the whole thing down (not easy!) and had it sandblasted to bare
metal, primed twice and then two coats of black paint. That was 25 years
ago, and it still looks good.

YMMV,

-John

================





> I have been using various converter products, both sprays and liquid
> paints,
> for decades in classic auto restoration and preservation with excellent
> results.  The most common usage I have is to disassemble the doors of
> newly
> acquired used or restoration, older cars , clean out the bottom of the
> doors
> inside the skins (and outside) and treat these areas with converter, a
> Rustoleum type primer and paint.  I have never had a problem of rusting
> out
> again.  Currently I have a 31 year old auto that is not in the protected,
> garaged, collection but driven daily, at 290,000+ miles.  It has set
> outside
> its whole life and shows no sign of rust.  Oh, yeah, I live in the winter
> salt haven called Minnesota, traveling in a metro area.
>
> One thing I recommend is clean out as much rust as possible.  It seems you
> never get it all, even if you see bare shiny metal.  I learned the latter
> with late 70s and early 80s GM cars with primer failure, promoting the
> common silver dollar sized rust spots observed on many doors and quarter
> panels.
>
> Gerry
>
>
> -----Original Message-----
> From: boatanchors-bounces at mailman.qth.net
> [mailto:boatanchors-bounces at mailman.qth.net] On Behalf Of David Stinson
> Sent: Sunday, April 07, 2013 7:34 AM
> To: milsurplus at mailman.qth.net; boatanchors at theporch.com;
> boatanchors at mailman.qth.net
> Subject: [Boatanchors] "Rust Converting" Paint- Good? Bad?
>
> I've recently been told that "rust converting" paint- paint that claims to
> chemically "fix" and stop rust, converting, sealing and bonding it within
> the paint lattice, actually makes rust worse over time.
>
> Anyone have any hard information on this?
>
>
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