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⏳ Slow to cure, fast to impress — master your craft with West System 206-B!
West System 206-B Slow Hardener is a low-viscosity epoxy curing agent designed to pair with 105 Resin at a precise 5:1 ratio, providing extended working time and superior bonding strength. Ideal for professional-grade fiberglass, structural bonding, and coating applications, it offers excellent moisture resistance and can be customized with fillers and pigments. Perfect for millennial pros who demand precision and durability in every project.















| ASIN | B0002NY6SM |
| Best Sellers Rank | #93,888 in Automotive ( See Top 100 in Automotive ) #331 in Automotive Fillers, Adhesives & Sealants |
| Brand | West System |
| Brand Name | West System |
| Compatible Material | Fiberglass |
| Container Type | Can |
| Customer Reviews | 4.7 out of 5 stars 308 Reviews |
| Global Trade Identification Number | 00811343010614 |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Weight | 907 g |
| Item form | Liquid |
| Item package quantity | 1 |
| Item volume | 814 Milliliters |
| Material | Epoxy Resin |
| Material Type | Epoxy Resin |
| Model | 206-B |
| Number of Pieces | 1 |
| Package information | Can |
| Part Number | 206-B |
| UPC | 656166678852 811343010614 |
| Viscosity Level | Low |
| Volume | 814 Milliliters |
| Water Resistance Level | Water Resistant |
E**N
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.
J**S
Great Product
Great Product
O**S
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.
M**L
FAST and low to NO Odor.
Woah, once I finally got the lid off, I didn’t 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 there’s no good reason to come up short on hardener, but anyway, a leaky pump that defied the Laws of physics was a culprit on top of mixing by weight instead of volume. When working with less than 20ml, it’s difficult to pour and I have yet To find a pump that’s able To Effectively Pump thick resin. Anyway, back to this product, it has a slightly amber tint that doesn’t 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. That’s been an hour ago and it’s touchable and not even tacky.
H**D
Slow hardener for fiberglass resin
Not cheap but correct, and delivered to my front door; Great packaging
Trustpilot
2 weeks ago
1 month ago