West System 105 Epoxy Resin is the key component in a wide variety of boatbuilding, restoration, and repair projects. It is the base material of the West System family of products on which all of the West System compounds are built.
The resin is a clear, light amber, low-viscosity liquid epoxy resin. Formulated for use with West System hardeners, it can be cured in a wide temperature range to form a high-strength solid with excellent moisture resistance. It is designed specifically to wet out and bond with wood fiber, fiberglass, reinforcing fabrics and a variety of metals. An excellent adhesive, 105 will bridge gaps and fill voids when modified with West System fillers and can be sanded and shaped when cured. With roller applications, it has excellent thin-film characteristics to flow out and self-level without “fisheyeing.” The resin cures clear so that you can achieve a natural finish when coating with varnish. It has a relatively high flash point and no strong solvent odor, making it safer to work with than polyesters. The use of West System dispenser pumps (#40-4104; sold separately) is strongly recommended.