Originally Posted by hellosailor
Or, I'd break out the white MarineTex. Which isn't cheap but is conveniently durable and available in WHITE so there's no blending or coloring needed, it will look like a better finished repair with less bother.
I was leaning this way, for the reasons you describe, plus it looks like I might be able to save the leftover MarineTex for other stuff (I've had bad experiences with leftover epoxy in the past).
Personally I refuse to use MarineTex, but for this it would likely work fine. It's just very expensive by volume, and much lower quality than most.