Over the last few days I've been fiberglassing the hull exterior. The layup is one layer of 6 oz E-glass on the hull, reinforced with a second layer below the waterline and 2 more layers along the bow and stern stems. The area where the stern piece joins the hull also gets a reinforcing strip. The epoxy is MAS with slow hardener -- "non-blushing" and one can recoat in 24-36 hours without sanding. It cures slowly so I have plenty of time to scrape the epoxy out of the glass and smooth it out with a roller. It provides a totally transparent layup.