The old antifouling (paint that is put on the bottom of a boat to discourage barnacles from attaching themselves to the hull) was sanded off, the underlying paint inspected, and epoxy paint then put on. The purpose of the epoxy paint is to electrically insulate the steel hull (which is actually coated with zinc in this case) from the copper that is in the antifouling paint.

The first attempt at putting the epoxy on didn't go well, as it was not mixed well enough (it comes in two components, that must be mixed together correctly) before painting. Epoxy that is mixed incompletely or incorrectly results in paint that will never "dry" (cure). The following day, the incorrectly mixed paint was laboriously removed so the painting could be started again.

The first coat of epoxy is on. The zebra look is from running out of white and substituting black (the next coat will be entirely black).