

⏳ Harden fast, fix faster – don’t let downtime slow you down!
West System 205-A Fast Hardener is a premium epoxy resin hardener designed for rapid curing within 10-15 minutes and full cure in 3 days. Its medium viscosity enables precise application, especially in fiberglass repairs and coatings. Waterproof and low odor, it’s trusted by professionals for durable, fast, and clean bonding solutions.















| ASIN | B0002NY6T6 |
| Best Sellers Rank | #63,178 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #44 in Boat Painting Supplies |
| Brand | West System |
| Brand Name | West System |
| Color | Clear |
| Compatible Material | Fiberglass |
| Container Type | Bottle |
| Customer Reviews | 4.6 out of 5 stars 244 Reviews |
| Full Cure Time | 3 Days |
| Global Trade Identification Number | 00678358932108, 00811343010027 |
| Included Components | West System 205-A Fast Hardener |
| Item Form | Liquid |
| Item Height | 3.65 inches |
| Item Package Quantity | 1 |
| Item Type Name | West System 205-A Fast Hardener |
| Item Weight | 9.6 Ounces |
| Manufacturer | Gougeon Brothers, Inc. |
| Material | Epoxy Resin |
| Material Type | Epoxy Resin |
| Model | 205 |
| Other Special Features of the Product | Fast cure time, adaptability with various modifications |
| Special Feature | Fast cure time, adaptability with various modifications |
| Specific Uses For Product | Bonding, Coating |
| UPC | 678358932108 811343010027 |
| Unit Count | 7.0 Fluid Ounces |
| Viscosity | Medium |
| Volume | 206 Milliliters |
| Warranty Description | LIMITED WARRANTY |
| Water Resistance Level | Waterproof |
D**R
Perfect for our rental skis
This has become the only thing we use on our rental skis. It's worth it!
M**E
Works as advertised
West system products worked very well. Easy to mix and apply with use of measuring hand pump, and syringe. Used to harden soft spots on RV floor. Make sure your holes are NOT drilled completely through the floor, or product will just run through. This product has a thin viscosity in order to inject where needed. Takes time to harden. Starts to harden within about 10-15 minutes. Oder is minimal which was a great surprise. Still used in well ventilated area.
S**.
Fast and convenient
This was my first time using West System epoxy. I bought this along with the kit with the 204A hardener. The 205 hardener worked great with plenty of working time for some butcher block waterfall counter tops I was assembling. Thick enough to address some minor gaping issues yet thin enough to squeeze out properly for a great wood joint. I've use the hardware store epoxies or small bottle epoxies for many years and finally bit the bullet for West System. More expensive upfront but much cheaper overall. It is so much more convenient. The pumps are quick and so much more accurate for ensuring a proper cure. I highly recommend this product.
A**R
Set up time still a function of air temperature
West System a great Fiberglass product , very strong and durable. System quite Expensive top use a lot. Was used to join / repair hardboard facia panels.
E**.
Quality epoxy
We systems makes an excellent product. There are several hardeners, to go with their 105 epoxy resin. Choose the right Harder, for your application. The epoxy can be readily mixed with mill glass to increase structural strength of parts and also increase viscosity. It can also be mixed with micro balloons to increase viscosity. Work with it as you wish.
Y**K
Dependable part of a Top-Grade Epoxy System
I have been using West System epoxy for a wide variety of woodworking and handyman applications for over 15 years. It always has given me the quality and dependable results that I want. Occasionally I have tried other brands, especially when they have "special" pricing. But I always come back to West System - those other brands I tried just seem to have more variation in cure times, ease of application and results.
R**.
West System 205-A Fast Hardener
The West System is by far the best epoxy on the market to date! Easy to use! No mass. Simple to mix by pump! Use 205-A (Fast Hardener) or (206 Slow Hardener) I have been using it for 25 years and never had a problem with it! Great Epoxy!
M**P
The hardener works.
The hardener is needed to make the epoxy set.
Trustpilot
2 months ago
2 weeks ago