1. Keel box
Take the carbon keel molding, wrap with 6 or 7 layers of cling film and lubricate with mold release wax or petroleum jelly.
Cut 3 pieces of glass cloth (100g/sqm – 200g/sqm) to rectangles 20 by 12 cm and laminate with epoxy resin on a flat surface.
Fold the wet laminate around the leading edge of the keel and clamp behind trailing edge. You can add a layer of peel ply to get a smooth surface.
Wait until the resin has cured, then gently remove the keel and discard the cling film. Trim the ends of the keel box. The keel box exactly fitting your keel is ready to laminate into the main hull now.