SeaCraft 20 '74 hull, post soda, now I...

[cmoore]

...about 12 in prep and another 8 in painting. Both responses above were right on. With only one exception all failed areas were dry.

After soda blasting I washed the hull with vinegar, water and a stiff brush. I then used Interlux Watertite (longer cure) which needs to be ordered as no one stocks it applying that on damaged areas that would be seen and over the transom area where a prior depth finder caused damage. For the other damaged areas I use West Marine putty and I used that as a final skim. I really adhered to cleaning before applying filler.

Think I filled 80-90% of the over 1,000 damaged areas passing on small stuff. I chipped away on most all cracked gelcoat. I probably could have done a lot less but just could not resist. The sanding was a major effort and Friday ended when I just could not hold the sander up anymore. Did the final wash down, brush and rinse (hull dried more quickly than expected). Spent 10hrs Friday and 2hrs Saturday.

Applied 2 coats of Interlux Interprotect 2000 and one coat of Interlux Micron Extra in an afternoon. Came back 18 hours (and many ibu's) later I applied a second coat of Micron Extra. Spent 7hrs Saturday and 1 hr on Sunday.

A gallon of Interprotect was too much for 2 coats on a SC20. If I had more energy I'd have done a third coat (and still would have had extra). If you use this great stuff I suggest you think through the mixing and containers on paper first. And I was lucky with the weather. Temps in the upper 60's and humidity in the low 50's.

Once on the trailer I will sand and Interprotect the areas under the stands with their second coat and apply Micron Extra to that area and apply a third coat to the bow, transom, etc...

After 41 years it was time for this butt lift. I will take more close up photos and compare them at the end of the season to see the real results of time and use.