So i have a boat with some spots in the keel worn bad enough that some fiberglass is exposed due to the precious owner beaching it a lot. Anyways. I want to make a peanutbutter out of total boat epoxy resin with slow hardener, fumed silica, and chopped fiberglass. My plan is to prep the area with a wire wheel, clean with alochol, and apply the PB working it into crevices and sanding after. As long as i can keep the work area under 5" wide i don't care about color matching since a keel shield will be installed. Am i on the right track or do i need a different method/ products? Thanks everyone.