Minimum recommended temperature: 70°F (21°C) … Cure to maximum strength: 1 to 4 days. The time it takes for this transformation is the cure time. Mix it with WEST SYSTEM … The shelf life of some materials is shortened once the package is opened, others not. Cure to a solid state at 95°F (35°C): 6 to 8 hours The product type is West System 209 Extra Slow Hardener It is manufactured by Gougeon Brothers Cure to maximum strength at 72°F 4 to 9 days Minimum recommended temperature 70°F (21°C) Pair with WEST SYSTEM 105-A Epoxy Resin Product details. WEST SYSTEM 209 EPOXY EXTRA SLOW HARDENER – PART “B” ONLY 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 … For example, a can of soda can sit on a grocers shelf for a year and still tastes fine when opened. 207 and 209 Hardeners are mixed with 105 Epoxy Resin in a ratio of 3:1. On a good, warm, windy day, it could be tack-free in 15-20 minutes and be able to walk on within an hour. Estimating Epoxy Coverage for Fabric Application, Fiberglass Boat Repair & Maintenance (pdf), Common Mistakes in Fiberglass Repair (Webinar), The Gougeon Brothers On Boat Construction book, Health Effects from Overexposure to Epoxy, Call from outside the U.S.A. 1-989-684-7286, 105/209 Extra Slow Hardener Technical Data. 303 Mini Pumps are calibrated to deliver the proper working ratio with one full pump stroke … It is also used when extended working time is desired at … Actually the chemical Salicylic acid, major component … Excessive heat will cause the epoxy to harden too fast, especially in thick applications. This is a good time to clarify that there are now three different epoxy types in the WEST SYSTEM product line. Pot life is always shorter than working time because epoxy contained in a pot kicks off faster than epoxy spread into a roller pan (thin film). The tested epoxies that allow hardener mixing are: West System 206 & 205 fast; MAS slow & fast; System … System Three Epoxy has excellent pot life and cure-time control. They are also good for coating wooden surfaces to create a clear moisture barrier. It was done last night and the hardening was s … When some additional working time is needed ; Composite construction and repairs ; A tough stable base for paints and varnishes ; Not intended for clear coating ; Slow Hardener, West System 206-A, 0.44 pt. I only gave it 4 stars because I dont have much experience with other types. 209 Extra Slow Hardener, mixed at a 3:1 ratio with #105 Resin, results in a pot life of 20-25 minutes at 72°F, with 10-15 hours required for a … The pot life listed on the WEST SYSTEM technical data sheets refers to a confined mass of 100 grams of epoxy at 72°F. A system that uses pumps has waste. 207 Hardener will not blush or turn cloudy in humid conditions. Standard Shipping (ground service) is used to ship items that are considered hazardous. Provides approximately twice the working time … Shelf life commences when a material is made. A strong ammonia-like odor may develop if it is stored in a sealed container for a long time. 105 Epoxy Resin is a clear, light amber, low-viscosity liquid epoxy resin formulated specifically to wet out and bond with wood, fiberglass and a variety of metals. Politics, world news, photos, video, tech reviews, health, science and entertainment news. 1.What we previously referred to as WEST SYSTEM epoxy are the four resin/hardener combinations based on 105 Resin(105 Resin mixed with 205 Fast Hardener, 206 Slow Hardener, 207 Special Clear Hardener or 209 Extra Slow Hardener). West System Epoxy 1.2 Quart Kit A-5, with Fast 205A Hardener . Forms a clear, amber-colored solid with good physical properties and moisture resistance for bonding and coating applications. To maximize the working time of the epoxy, consider how much time you need and what temperature you’ll be working at, then select the hardener accordingly. The working time is longer than most boat building epoxies without extending cure time. It was meant to be used in thin films, so its chemistry creates enough heat to push the reaction through without requiring an external heat source to reach a full cure… You should be able to comfortably touch the substrate or the component containers when they are appropriately warmed—about 115°F maximum. bhchan. 206 Slow Hardener is a low-viscosity epoxy curing agent for use when extended working time or a longer cure time is needed. Choose the right hardener to control the cure time of 105 Epoxy Resin at the temperature at which you will work. Epoxy resins require a hardener to initiate curing which is included in the kit. Help! It is used when extended working and cure time is needed or to provide adequate working time at higher temperatures. For group size "E" and larger sizes, we suggest use of either the 306-23 Special Purpose Resin/Hardener pump (Model 128845), which dispenses hardener and 105 Epoxy Resin at a ratio of 3:1, or the 306-25 Special Purpose Resin/Hardener pump (Model 335703), which dispenses hardener and 105 Epoxy Resin at a ratio of 5:1. Coating and bonding … Spreading out the epoxy dissipates heat, extending its working time. The first is to simply use the 209 Extra Slow Hardener—the longer open time … We're using West System 105/206 for all of the components. This hardener forms a clear, amber-coloured solid with good physical properties and moisture resistance for bonding and coating applications. Not intended for clear coating. Cure to a solid state: 10 to 15 hours. The cure rate of 105 Epoxy Resin can be adjusted to ambient temperature and desired working time. WEST SYSTEM initially developed its 105 Resin-based epoxy system as a laminating epoxy. WEST SYSTEM ® 105 Epoxy Resin in 500ml, 1 litre, 4 litre, 20 litre or 200 litre packs. WEST SYSTEM 209 Extra Slow Hardener™ is used for general coating and bonding applications in extremely warm and/or humid conditions. It also provides adequate working time … West System … WEST System epoxy can be used for boat repairs and the building of new boats. 205 Fast Hardener is formulated to cure well at temperatures as low as 40°F (4°C), but this does require an extended cure time before removing clamps or sanding. Buy Now . ATL Composites has enjoyed steady growth in Australia for over 40 years. We offer hardeners in "A", "B", "C" and "E" group sizes. CAUTION! As it cures, the epoxy passes from the liquid state, through a gel state, before it reaches a solid state. For hot temperatures, we recommend 209 Hardener. West System Epoxy 1.2 Quart Kit A-6, with Slow 206A Hardener . Minimum recommended temperature: 70°F (21°C), Estimating Coverage for Fabric Application, 105/209 Extra Slow Hardener Technical Data (pdf), Video: Dispensing and Mixing WEST SYSTEM Epoxy. $66.18. Curing of the post. This increases the surface area so heat buildup (exotherm) can dissipate, slowing the epoxy’s reaction. There are two main things to consider: how the resin wets out the cloth and how well is fills the weave. COAL TAR EPOXY COATING Coal Tar Epoxy - Two Component - 100% Solids Product #209 PRODUCT DESCRIPTION. It is also used when extended working time is desired at room temperature. WEST SYSTEM Epoxy’s cure times are based on an ambient temperature of 72°F. Thread Tools: Jul 11, 2007, 11:56 AM #1; epwierman. West System - 209 Hardener, Extra slow : Extended working time in extreamly warm conditions ; 40 to 50 minute pot life, solid in 20 to 24 hours ; Additional data available; Ideal for use in . 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