West System 105-B Epoxy Resin

Key features

• 105 EPOXY RESIN is the base material on which all WEST SYSTEM 105 System epoxy compounds are built. It is a clear, pale yellow, low-viscosity liquid epoxy resin. Blended at the correct ratio with one of 4 WEST SYSTEM hardeners, it cures to a high-strength solid that is functionally waterproof, highly resistant to moisture vapor. Based on which hardener you choose, it cures at a wide range of temperatures.
• THIS EPOXY IS EASILY MODIFIED with WEST SYSTEM Fillers, Additives, and Pigments to create the necessary handling characteristics to suit the job at hand. Whether you need to create a pigmented coating, high-strength epoxy joints, a fairing compound, or low-friction surface, WEST SYSTEM 105 Resin is modifiable to meet your project's requirements.
• COMBINED WITH WEST SYSTEM 205 Fast Hardener or 206 Slow Hardener at a 5-parts resin to 1-part hardener ratio, 105 Resin cures, developing superior physical properties at room temperature. It has excellent structural bonding properties, can be modified with fillers and additives, and will easily coat fiberglass other porous substrates.
• COMBINED WITH BLUSH-FREE 207 Extra Clear Hardener at a 3-parts resin to 1-part hardener ratio, 105 Resin is excellent for coating and fiberglass cloth applications where an exceptionally clear, moisture-resistant, natural wood finish is desired. It will not blush or turn cloudy, even in humid conditions. Thin film applications roll out and tip off smoothly, requiring less sanding in preparation for finish coatings.
• COMBINED WITH 209 Extra Slow Hardener at a 3-parts resin to 1-part hardener ratio, 105 Resin is especially well suited for general coating and structural bonding applications in extremely warm and/or humid conditions or when working time is needed at room temperature. Forms a clear, amber-colored solid with excellent physical properties and moisture-vapor resistance.