[Alanglois]

Mark, as usual always great information! Artwork, thanks to you as well and all who have posted to this thread as I'm sure it will be helpful to future hull adventurers like us! Just blasted the hull bottom this morning and all looks well. The primer is going on as I write this. The blast revealed that the original barrier coat was intact (and still is) on 95% of the boat. We went down to the aluminum on the other 5% (maybe less) and we need to do some fairing repair in these areas. Otherwise I was pleasently surprised. Boy the factory used a lot of fairing in some places just to get the right line - impressive. I'll post again as we move along.

Al

[9lives]

Al, now you know what I meant that the orange urethane bottom barrier coat was impressive! Like yours, we left 95% intact as well.
The worse places were on the hard chines about directly under the gate areas.

What are you using as a new barrier over any zinc chromate?
Mark

[q240z]

Art, interesting point about fairing over the barrier coat. I suggested that to my painter a few weeks back and he said the fairing compound goes on first. Then he invited me to look at what Chris Craft did back in the day. Sure enough, they appear to have faired over aluminum then hit it with the orange primer coat.