We’ve got some great news about the construction strategy of our 46RK, which is an exciting course change for us! This is not just another pretty boat.
Recently we’ve begun to resin-infuse the underwater portion of our 46RK hull. It’s an exciting departure for us. The below-the-waterline fiberglass layup now has no foam coring and no Coremat. What we’re gaining by this process is a very strong and light layup that will never suffer from water permeation into a core material.
With resin infusion, resin-to-glass ratios can be more accurately controlled. The result is an ultra-strong, yet light hull, not burdened by the weight of excess resin, and not vulnerable to water intrusion into the laminate. While perhaps not as light as hulls built with resin infusion and coring, we feel our hull is the perfect balance of weight and strength, without the threat of water intrusion into the layup.
Below-the-waterline layup begins with isothalic gelcoat, followed by a vinylester skin coat that acts as a moisture barrier. Then two plies of carbon fiber cloth are added and are followed by 18 plies of biaxial E glass. Finally, two plies of carbon fiber cloth are added to finish the hull.
Topsides laminations are hand-laid and composed of isothalic gelcoat followed by a vinylester skin coat. After the skin coat, we add four plies of biaxial E- glass, then ½” of PVC (Divinycell) foam. The foam is covered with four plies of biaxial E-glass. Resin for the layup is blended polyester.
While resin infusion is a more costly process than hand layup, we believe it produces a stronger and lighter hull.
Come to the Annapolis Sailboat Show, October 9-13, and take a tour of our first resin-infused Seaward 46RK! We’ll be happy to talk about the process when we see you there. ~ Nick Hake