[Shop-talk] Metal cleaner for paint prep

[Brian Kemp]

Bob - Since it is a new gate you had built, can you ask the supplier 
what they recommend?  I'd start with your favorite cleaner/degreaser 
then use a phosphoric acid "metal prep" product.  I did this on a second 
hand roll bar that was a bit rusty then sprayed with an epoxy paint.  
Still looks good after 20+ years.

Here is a sample product that looks like what I used:
https://www.homedepot.com/p/Klean-Strip-1-Gal-Concrete-Etch-Metal-Prep-Rust-Inhibitor-GKPA30220/100406369
or
https://www.lowes.com/pd/Klean-Strip-Concrete-and-Metal-Prep-1-GAL/1001456348

Note that if the iron was galvanized, you have different directions.  
Here is one of the search returns on painting galvanized metal: 
https://www.dunnedwards.com/professional/painting-contractors/under-the-lid/painting-galvanized-steel

Brian

On 6/14/2020 1:09 PM, Bob Spidell wrote:
> Listers,
>
> I've had a new iron gate built for our ranch. I'll paint it using 
> Rustoleum self-etching primer and enamel; what is the List wisdom on 
> the best prep/cleaner: acetone, brake cleaner, lacquer thinner, etc.? 
> I know they'd all work pretty well; any favorites? Drawbacks? Note the 
> iron was protected with some sort of oil/grease/wax.
>
> TIA,
> Bob
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