Ok. I’ve used around 50+ gallons of Raka on various parts
after the hulls were joined and bulkheads put in and stuff on my boat
. I opted for Mas infusion epoxy for fabricating the hulls and bulkheads and beams.
I used raka for fairing, making rudder
cassette boxes, holding rudder
bushings in place, building steps outside on deck... and I left some in the Florida
sun for a year. Part of the steps weren’t painted. It turned yellow but I can’t break it in any way.
Get the paint
on soon to protect it (or at least get a tarp or sheet of plywood
or something over it), but I’m going to mention again that your application is in no way stressing the epoxy anywhere near its limits. Even Slightly yellowed, the surrounding polyester would mostly likely fail before your repair work
if stressed to the breaking point through destructive testing.