West System Epoxy ResinThe base material of the West System family of products, on which all of the compounds are built. It is a clear, pale yellow, low viscosity liquid epoxy resin. Blended with hardener at the proper ratio, it cures to a hard, solid plastic with superior physical properties. Based on which hardener you choose, it cures at a wide range of temperatures. Once cured, it forms a high strength solid that is functionally waterproof, and highly resistant to