[Shop-talk] Etching bare metal

[Jim Stone]

Thanks, guys.  Very helpful.  The metal looks very good; I just want to be certain nothing is lurking in the pits that might come back to haunt me.

I am curious to know if anyone has ever tried the Rust-Oleum Rust Reformer under auto paint.  I have used it with good success in general shop work, but have wondered about its spot use as I work though the car.  I am thinking that any use of it would be hit with a second primer later, just for consistency of the primer surface.

Jim

> On Nov 13, 2022, at 9:17 PM, Doug Braun <doug at dougbraun.com> wrote:
> 
> I used this when doing a lot of bead blasting and sandblasting on my '31 Ford, and it was very helpful:
> 
> https://fsccoatings.com/zero-rust-prep-step-powder <https://fsccoatings.com/zero-rust-prep-step-powder>
> 
> You mix a tablespoon of the powder in a spray bottle of water, and spritz some on the freshly-blasted metal.
> The nice thing is, it's not corrosive, or bad to get on yourself.  It goes a long way - one container
> of the stuff was enough to do almost every square inch of the frame body, and running gear.
> 
> Doug
> 
> 
> 
> On Sun, Nov 13, 2022 at 9:10 PM Pat Horne <patintexas at icloud.com <mailto:patintexas at icloud.com>> wrote:
> Several years ago I was stripping the frame on my 67.5 Datsun roadster using a pressure washer with a media blaster tip & was really surprised, not only how fast it stripped down to bare metal, but how fast it flash rusted. Within a few minutes of blasting, it rusted. I finally had to blast a minute or so, then dry & phosphate coat it before continuing. The phosphate I used needed to be washed off before priming which added to the process. Wish I could have found some of the phosphate that didn’t need washing but nobody stocked it. 
> 
> Peace,
> Pat
> 
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