Join Date: Feb 2009
Location: NY Metro
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to the OP, I just did all this this past winter / spring and my boat is from the same builder as you so you may see some of the same probs. Some of my thoughts;
1. soda blast is good as it does more than just take paint off, it revealed to me gelcoat imperfections that I then filled with epoxy thickened with microbaloons. The guys I hired were idiots but they got the paint off. If the surface is pitted who cares, more surface area for the first barrier coat. I wouldn't take anything off that is well bonded, just fill
2. neutralize the soda with cheap vinegar from the grocery for easy cleanup
3. get ready to do alot of sanding, filling, fairing, sanding, filling, etc.
4. I did not choose Interprotect for the following reasons; high cost and tight windows for recoating and bottom painting which, if done incorrectly, can mess up quite a bit of work and add more cost and work.
5. I chose MAS epoxies for the following reasons; reasonable cost, easy to use/mix, VOC free, flexible application ( you can recoat when its tacky or wait till it hardens while you are on vacation in between coats, hit it with a scruff pad and throw another coat on ) no need for crazy expensive and toxic solvents as water and denatured alcohol are all you need, on final coat after it has had time to fully cure, scuff with a scoth pad and paint with ablative paint so you never have to do this again.
5. MAS epoxies were good for filling, fairing, wetting out glass for repairs, barrier, so I had one product that I could use for all those purposes, just keep pumping 1:1
6. When unavoidable repairs are to be done in the future I can just grind, repair, re barrier without all the time schedules and recoating windows. Easy Simple, cheap.
7. You can tint the epoxy for that cool grey look - I did.
8. After full cure just paint it when you want after a scuff.