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West System 206-B Slow Epoxy Hardener is a low-viscosity, slow-curing epoxy hardener made in the USA, designed for extended working time and high-strength, moisture-resistant bonds. It pairs with WEST SYSTEM 105 resin at a 5:1 ratio, cures predictably at room temperature, and is adaptable with fillers and additives for versatile structural and protective applications.















| Asin | B0002NY6SM |
| Best Sellers Rank | #35,352 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #3,158 in Industrial Adhesives, Sealants & Lubricants |
| Brand Name | West System |
| Color | Clear |
| Compatible Material | Fiberglass |
| Container Type | Can |
| Customer Reviews | 4.7 4.7 out of 5 stars (315) 4.7 out of 5 stars |
| Full Cure Time | 4 days |
| Global Trade Identification Number | 00811343010614 |
| Included Components | urea-resin-adhesives |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | Epoxy |
| Item Weight | 2 pounds |
| Manufacturer | WEST SYSTEM |
| Material Type | Epoxy |
| Model | 206-B |
| Number Of Pieces | 1 |
| Other Special Features Of The Product | Slow Curing |
| Part Number | 206-B |
| Unit Count | 1 Count |
| Upc | 656166678852 811343010614 |
| Viscosity Level | Low |
| Volume | 814 ml |
| Water Resistance Level | Waterproof |
User
Best option for typical applications
I use West Systems epoxy constantly. The slow hardener is the best overall option. It takes overnight to set up but you are rewarded with a super glue job. I use this with 105 rather than any aliphatic wood glues. Wood glues are only when I need something simple and fast like fixing a stripped screw hole.
User
Pricey but the best material to work with
Nice to get it at home versus finding a West Marine supply store 2 hours away. As always, product does what it says it will and work s perfectly. Just you wish it was a little cheaper as the price seems a bit inflated but about the same that you would spend at a store.
User
FAST and low to NO Odor.
Woah, once I finally got the lid off, I didnโt notice any odor. I had some leftover resin from other kits that I ran out of hardener for and this is the ONLY company on Amazon that I could find to purchase just the hardener. Yes, I know that thereโs no good reason to come up short on hardener, but anyway, a leaky pump that defied theLaws of physics was a culprit on top of mixing by weight instead of volume. When working with less than 20ml, itโs difficult to pour and I have yet To find a pump thatโs able To Effectively Pump thick resin. Anyway, back to this product, it has a slightly amber tint that doesnโt really change any color additives I used but forget about true colorless clear casting. Fast! Very fast! I only had 18ml in med cup and it was cured in 15 minutes and yes, I mixed it correctly at 5:1. It was still tacky and solid. So, maybe 10:1 if you need more working time. Thatโs been an hour ago and itโs touchable and not even tacky.
User
Slow hardener for fiberglass resin
Not cheap but correct, and delivered to my front door; Great packaging
User
Great for woodworking
I use this with the 105 resin to fill cracks and imperfections in solid wood. You can either dye it to a color you want or use it clear as is. Youโre going to end up with a lot of bubbles as with any epoxy, but I use a small torch with indirect heat to pop those and get a perfect finish every time. Itโs difficult to work with so if itโs your first time I would recommend watching some videos on YouTube or something to learn more before you dive in. But the product works exactly as intended. Donโt expect to fill a large crack all in one pour. Work in stages or youโll end up with voids. Get the pumps that they sell as well in order to get the perfect mix and make it easier on yourself.
User
Beautiful and Consistent Results
I have written reviews for all my West System products to include the epoxy and the three hardeners I regularly use (205,206 and 207). This 206 Slow hardener is great for deep pours and I use it when filling deep crevices in live edge tables. It takes Black Diamond powder very well and I couldn't be happier with the results every time. You must get the pump system to ensure you mix the right ratios every time, but once you have the pumps on your cans, you can't go wrong.
User
Good Product,
Good Product, A++
User
Good epoxy
The epoxy has an excellent bond strength. The cure time is a bit slower than I would like, possibly due to cold weather (50 deg). This is while using the fast hardener. Easy to work with, but if you want to use less than the pre-metered pump doles out, it is a bit more difficult. It does seem to bond a wide variety of materials together. Overall a good product.
User
Great Product
Great Product
Trustpilot
1 month ago
2 weeks ago