I've been fiberglassing/epoxying portions of my 16LT over the past few weeks, tidying up/repairing areas where the hull has suffered deep abrasions and along the deck/chine seam from which I removed last year's rubrails (which I chose to remove for, largely, aesthetic reasons). I applied the final epoxy coat yesterday evening and took the boat outside this morning to do the sanding.
To my horrir, when I began to sand the epoxy, in many places, began discoloring (light brown) and turned "gummy." Did I not allow enough cure time? Did I get my resin/hardener ration wrong? How do I proceed?
I'd greatll appreciate your counsel.
Many thanks in advance,