It is used when extended working and cure time is needed or to provide adequate working time at higher temperatures. Cure to a solid state at 72°F (22°C): 20 to 24 hours Some epoxy formulations allow mixing of slow and fast hardeners to adjust the setting speed but you will have to invest in two hardeners and spend more time (and epoxy) for experimentation. We offer hardeners in "A", "B", "C" and "E" group sizes. These hardeners are also a good choice for barrier coating, where multiple coats of epoxy create moisture protection. Pot life at 72°F (22°C): 20 to 25 minutes. 209 provides 20-30 minutes of working time at 72°F. Epoxy resins require a hardener to initiate curing which is included in the kit. Select your hardener to give you the pot life you want at the temperature and conditions in which you will work. For best results when working in warmer temperatures, select the 206 Slow Hardener or 209 Extra Slow Hardener for best results. On a good, warm, windy day, it could be tack-free in 15-20 minutes and be able to walk on within an hour. 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). WEST SYSTEM ® 207 Special Coating Hardener is available in 160ml, 330ml, 1.33 litre and 6.7 litre packs. WEST SYSTEM 209-SB EXTRA SLOW HARDENER - 1 GALLON WEST SYSTEM brand resins and hardeners, form a two-part epoxy system developed by Gougeon Brothers specifically for wood and composite boat construction. 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. Cure to a solid state: 10 to 15 hours. Thread Tools: Jul 11, 2007, 11:56 AM #1; epwierman. Cure to working strength .....1 to 4 days 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… 206 Slow Hardener is a low-viscosity mixture of polyamines. 205 Fast Hardener produces a rapid epoxy cure that develops physical properties quickly at room temperature. 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. Shelf life is the time a material may sit unused and still perform as designed. 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. 105 Resin is a clear, low-viscosity liquid epoxy resin. It was done last night and the hardening was s … You should be able to comfortably touch the substrate or the component containers when they are appropriately warmed—about 115°F maximum. Touch device users, explore by touch or with swipe gestures. WEST System epoxy can be used for boat repairs and the building of new boats. Find out how to use WEST SYSTEM® Six10 thickened epoxy adhesive in this short tutorial The WEST SYSTEM ® range is a pioneer of all marine-grade epoxy systems. Cure to a solid state at 95°F (35°C): 6 to 8 hours. It has a minimum recommended working of temperature of 60°F. PC-Plumbing™ allows a working time of about 3 minutes and cures for service in 60 minutes. Every 18°F increase in temperature cuts the time it takes for the resin to cure in half. Cure Time: Variable: Type: Two-Part Epoxy Resin: Product Overview. A strong ammonia-like odor may develop if it is stored in a sealed container for a long time. As it cures, the epoxy passes from the liquid state, through a gel state, before it reaches a solid state. Liquid—Open time : Also known as working time or wet lay-up time, is the portion of the cure time… If you choose to use a pump measuring system you lack that versatility, and will increase your cost due to waste. 207 was developed for coating and fibreglass cloth applications where a moisture-resistant, natural wood finish is desired. Other uses include laminating or bonding sheets or layers of materials with tight fitting joints. The good news is you can do to prevent this. Pot life at 95°F (35°C): 15 to 20 minutes 206 Slow Hardener and 207 Special Clear Hardener should not be used below 60°F (16°C) unless you elevate the working temperature to allow the system to cure properly. 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). It is useful in a majority of bonding situations, and at lower temperatures. Standard Shipping (ground service) is used to ship items that are considered hazardous. Moisture can cause the epoxy to cure at a faster rate, become cloudy and reduce its cured physical properties. Partial cure time at 70°F is 5-7 hours. System Three Epoxy has excellent pot life and cure-time control. West System - 206 Hardener, Slow Cure : Easily sanded and shaped ; 20 to 25 minute pot life, solid in 10 to 15 hours ; Additional data available; Ideal for use in . It has a minimum recommended working temperature of 40°F. Provides approximately twice the working time of 206 Slow Hardener. West System Epoxy Kits, includes Epoxy Resin and choice of Hardener. I only gave it 4 stars because I dont have much experience with other types. Breaking news and analysis from TIME.com. Many epoxy users have seen pots of epoxy smoke and bubble due to uncontrolled exotherm. The Resin works in conjunction with a variety of WEST SYSTEM Hardeners, Fillers and Pumps for a wide range of applications. CAUTION! 300 Mini Pump Kit for group size A, B or C. When autocomplete results are available use up and down arrows to review and enter to select. Cure to a solid, thin film* ..... 10 to 15 hours . #206 Slow Hardener, mixed at the standard 5:1 ratio with #105 Resin, has a 20-25 minute pot life at 72°F with 12-18 hours required for solid cure. It can be modified with WEST SYSTEM fillers and additives and used to wet-out fiberglass tapes and fabrics. Choose the right hardener to control the cure time of 105 Epoxy Resin at the temperature at which you will work. Combined with 205 Fast, 206 Slow and 209 Extra-Slow Hardeners (sold separately), the cure time … Mix it with WEST SYSTEM … The first is to simply use the 209 Extra Slow Hardener—the longer open time … conductive filler system Example of Resin Bleed Different exotherm peaks for a typical epoxy at 80°C, 90°C, 100°C and 110°C. Use TotalBoat High Performance Epoxy Resin for a moisture-resistant cure that’s more clear and slightly more flexible than traditional 5:1 epoxy resin systems. It has a minimum recommended working of temperature of 60°F. Signature required for receipt of shipment. Curing of the post. It all depends on the weather. 2 Next. WEST SYSTEM initially developed its 105 Resin-based epoxy system as a laminating epoxy. To maximize working time and minimize waste, mix an epoxy batch size that you can use within half of the pot life. Cure time for "good epoxy" (West System's 105/206) Hi, Just did a motor mount using "West System" epoxy; 105 resin, 206 slow hardner, 5:1 ratio. West System Epoxy 1.2 Quart Kit A-5, with Fast 205A Hardener . Shelf life commences when a material is made. When cured, MirrorCast can … Minimum recommended temperature: 60°F (16°C). After thoroughly mixing 105 Resin and 209 Hardener, pour the epoxy into roller pans or onto the substrate. Excessive heat will cause the epoxy to harden too fast, especially in thick applications. 209 offers the most working time at higher temperatures. Is ” for coating wooden surfaces to create a clear epoxy casting Resin designed to fill knots, and. 60 minutes 209-to increase the working time of 206 Slow Hardener is available 160ml! The surface area so heat buildup ( exotherm ) can dissipate, slowing the epoxy much! Surfaces to create a clear, amber-colored solid with good physical properties and resistance! 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