West System 105 is a two-part marine grade epoxy resin that is ideal for boat repair and boat maintenance. It is a clear, pale yellow, low-viscosity liquid epoxy resin. Blended with a hardener at the proper ratio, it cures to a hard, solid plastic with great physical properties. Once cured, it forms a high-strength solid that is functionally waterproof, and highly resistant to moisture vapour. 105 Epoxy Resin is ideal to wet out and bond with wood fibre, fibreglass, and reinforcing fabrics. It also bonds well with a variety of metals.