Nope... all lies
It does somewhat seal the surface metal but greasy finger prints ect will still show.
Not as bad as dry blasting methods but still they will show.
Normal finger prints will not show.
We have been experimenting with clear coats but the schools still out on that one.
The biggest problem is fuel resistance.
If you have something you want to experiment with, send it to me and I'll blast it.
But, you have to post your results.
Or if you have a suggestion for a easy experiment I'm open to fresh ideas.
One other point.
If you do Vapor blast a engine, you better keep your hands clean while assembling it