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West System 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.
At 72-degrees, 206 Slow Hardener will have a 20-25 minute pot life. 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 applications.
| Mix Ratio, Resin:Hardener | 5:1 by weight or volume |
|---|---|
| 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 | 300, 306-25 or 309 |
Reviews for WEST System 206 Slow Hardeners
August 11, 2022
Verified Purchase
Always good
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February 9, 2022
Verified Purchase
I never worry about the fiberglass portion of my boat building because of the west system of products.
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August 25, 2021
Verified Purchase
Being summer, I really want the extra pot life time that this slower hardener allows. It also has little or no blush when cured and even as a slow hardener, usually set up to the touch in 12 hours
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May 8, 2021
I purchased online a gallon of West System 105. When I was making my online order I selected the web page for the 206 hardener . The web site came up with a picture of the 0.87 quart size of hardener next to which was the description (I didn't notice the description was for the "A" size) inadequate for the gallon of 105 I purchased. I didn't notice the error until the shipment arrived with a gallon of 105 and about one cup of 206. This mis-leading web sit photo caused an error that has delayed my project. The photo on the web site should match the description and change when you select a different size.
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July 16, 2020
Verified Purchase
I have used the resin and both 205 and 206 hardener for many years for boat repairs and custom door making . The bond is very strong.
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January 29, 2020
Verified Purchase
Even though it is winter, I still use the slow hardener. I just don't like to have my pot go off before I"ve used all that I mixed. This stuff is excellent.
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March 8, 2019
Verified Purchase
Great Service, even for small orders!
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November 16, 2017
Verified Purchase
I have been using West epoxy for decades. I have used it for sailboat maintenance, radio antennas, car bodywork, building repairs, toys to timbers. Anything that needs to be filled and faired. The ability to select a hardener for speedy hardening or extended working time is a great advantage. I have used soft filler to repair wooden items like the rotted frames of very large windows that I got free to install in the barn workshop. Once filled they are stronger than wood and impervious to weather for a long time. I have pumps that I occasionally use if I want perfect proportions. But I usually just slop some resin and hardener in approximate proportions into a mixing tray, and for mot purposes it works very nicely. The measurements would probably be more economical and perhaps produce a better finished product but for most jobs I don't bother. The pumps leak as temperature changes expand the pressure in the cans. A sturdy end cap on the pumps would help. I've tried electrical wire-nuts and they are marginally effective. The pumps are messy, and usually spend their time on essentially empty cans.
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June 12, 2016
Verified Purchase
Normally I prefer only Fast hardener, however, I had a rather large area of mat to wet out and anticipated warm weather ahead; so I purchased the Slow hardener. I did not realize the job would require so much resin and used up all the West System Resin that I had. My preference was to purchase Total Boat Resin because I've grown to like that product more than West; not to mention the money savings with free shipping for Total Boat. Instructions indicated I could use the two name brands together so I purchased Total Boat Resin and the West System slow hardener worked fine with the Total Boat Resin.
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December 2, 2015
Verified Purchase
We make walking sticks with brass tips and caps product works well, this order had shipping problems order on 11-10 got the product on 12-1
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