We found that the last coat of Interlux 2000 reached thumbprint tack quite quickly, such that we had to do the last coat of epoxy/first coat of bottom paint in four separate sections (44' boat). Just be prepared for that possibility with both epoxy and bottom paint and associated application tools at the ready. You'll now how quickly the epoxy tacks from earlier coats. Don't fudge on the "thumbprint rule"...we made that mistake and the very expensive bottom paint peeled off in sheets within a year.