You should wait quite a while before applying any finish - see your epoxy instructions - some recommend over a month waiting period. I have seen several posts here stating that limited use in the interim period is not a problem, The wood may change color to some extent from UV rays (tanning), but epoxy typically can handle a couple weeks to a month of steady UV exposure before beginning to break down - again, contact your epoxy manufacturer or read the manual that came with it.

: I have just epoxied in the hatch/compass mounts and put on the final coat of
: epoxy on the deck of my stitch and glue this past evening. Should be
: seaworthy.

: I would like to get it into the water as soon as possible to prepare for a
: symposium I am attending at the end of July. After the symposium, I am
: able to devote time to properly paint the boat which could include
: stripping anything I do now.

: Does anyone have any advice as to putting an opaque finish to protect the
: boat now and perhaps serve as a primer for the future paint job?