[Shop-talk] Metal cleaner for paint prep

[Bob Spidell]

Thanks for the replies, guys. The gate was fabbed by a friend who works 
for me sometimes (he's a garage door contractor). It's raw steel, so I 
think I'll go with an off-the-shelf degreaser and maybe an acetone 
follow-up (prob go with the Klean-Strip). It's gonna be a rattle-can 
paint job, so nothing fancy.

I checked a few products with 2-Butoxyethanol didn't see any 
products--with labels I could see--containing it. It appears the 
environmentalists might have taken issue with it.
Bob

On 6/14/2020 9:42 PM, Brian Kemp wrote:
> 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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>