Problem: Am in the unfortunate situation where I have to bond to a faired surface.
Background: Fairing compound is System Three Quick Fair, an epoxy based, premixed marine specific fairing compound. The part to which I am bonding (trimaran beam) is structural and I can't afford (structurally) to grind off all the fairing compound. The bonding I am doing is not super critical (post facto peace of mind reinforcement of rod in tube net rail).
Plan: Grind off the fairing till the carbon shows in high spots, but without trying to get it out of the weave. Rough up with hand sand 60 grit. Coat with a toughened flexible epoxy adhesive (e.g. Pro-Set 175-276) and then laminate on top of that wet on wet with compatible Pro-Set laminating resin.