Premium Epoxy: QuikFair is a lightweight, microballoon-filled, fast-curing 2-part epoxy fairing putty engineered to provide excellent moisture resistance Easy To Apply: This epoxy putty boasts a non-sagging, butter-like consistency that makes it easy to measure by weight or volume; The 2 color-coded parts can easily be mixed to form a 3rd color Versatile Application: Our marine-grade epoxy can be used on both fiberglass and wood-epoxy boats above or below the waterline Fast Curing: At 70ºF, our fiberglass and wood epoxy is sufficiently cured to sand exceptionally well within 4-6 hours; Meaning you can apply 3 coats each 24 hours in a standard 8-hour shift or 6 on a round-the-clock basis For Best Results: Apply at 50ºF or above and always sand QuikFair marine epoxy before applying additional coats of putty, resin, or other coatings/finishes to ensure good adhesion