[Shop-talk] Etching bare metal

[Doug Braun]

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

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> 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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