105 Resin is the base material of the WEST SYSTEM family of products, on which all of the WEST SYSTEM compounds are built. <br>The resin is a clear, pale yellow, 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. Resin viscosity is approximately 1000 cP (centipoise) at 72°F (22°C). West System 105 Resin A 1.0kg B 5 kg C 25 kg E 225 kg
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West System 205 Fast Hardener
205 Fast Hardener is a medium-viscosity epoxy curing agent. <br>It is used in a majority of situations, at lower temperatures and to produce a rapid cure that develops its physical properties quickly at room temperature. When mixed with the 105 Resin in a five-part resin to one-part hardener ratio, the cured resin/hardener mixture yields a rigid, high-strength, moisture-resistant solid with excellent bonding and coating properties. Not intended for clear coating. Mix Ratio, Resin:Hardener 5:1* Pot life at 72°F (22°C) 9 to 12 minutes Cure to a solid state 6 to 8 hours Cure to maximum strength 1 to 4 days Minimum recommended temperature 40°F (4°C) Pumps required 301, 306 or 309
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West System 206 Slow Hardener
206 Slow Hardener is a low-viscosity epoxy curing agent for use when extended working and cure time is needed or to provide adequate working time at higher temperatures. When combined with 105 Resin in a five-part resin to one-part hardener ratio, the cured resin/hardener mixture yields a rigid, high-strength, moisture-resistant solid with excellent bonding and coating properties. Not intended for clear coating. Mix Ratio, Resin:Hardener 5:1* Pot life at 72°F (22°C) 20 to 25 minutes Cure to a solid state 9 to 12 hours Cure to maximum strength 1 to 4 days Minimum recommended temperature 60°F (16°C) Pumps required 301, 306 or 309
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West System 207 Special Coating Hardener
207 Hardener This hardener was especially developed for use with WEST SYSTEM Brand 105 Resin in coating applications where an exceptionally clear, moisture-resistant, natural wood finish is desired. Cures to a light amber color, similar to traditional spar varnishes. An ultraviolet inhibiting additive improves the resistance of a WEST SYSTEM 105/207 mixture to sunlight, but the cured epoxy surface will still require the additional protection of a quality UV-filtering varnish. 207 is designed to self level for smooth finishes, and to wet-out and bond fabrics. Although it provides good physical properties for general bonding applications, it is more difficult to thicken and less cost effective for this purpose than 205 or 206 Hardeners. It’s also used for laminating veneers where bleed through at joints may be exposed to sunlight. Mix Ratio, Resin:Hardener 3:1* Pot life at 72°F (22°C) 22 to 27 minutes Cure to a solid state 9 to 12 hours Cure to maximum strength 4 to 7 days Minimum recommended temperature 60°F (16°C) Pumps required 303, 306-3 or 309-3
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West System 209 Extra Slow Hardener
209 Extra Slow Hardener 209 Extra Slow Hardener is formulated for use with WEST SYSTEM Brand 105 Resin for general coating and bonding applications in extremely warm and/or humid conditions or when extended working time is desired at room temperature. Provides approximately twice the working time of 206 Slow Hardener. Forms a clear, amber-colored solid with good physical properties and moisture resistance for bonding and coating applications. Not intended for clear coating. Mix Ratio, Resin:Hardener 3:1* Pot life at 72°F (22°C) 40 to 50 minutes at 95°F (35°C) 15 to 20 minutes Cure to a solid state at 72°F (22°C) 20 to 24 hours at 95°F (35°C)6 to 8 hours Cure to maximum strength at 72°F 4 to 9 days Minimum recommended temperature 70°F (21°C) Pumps required 303, 306-3 or 309-3
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