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West System 205B Fast Hardener 0.86 Quart

Manufacturer

West Systems

<p>Founded in 1969 by brothers Meade, Joel, and Jan Gougeon in Bay City, Michigan, West System emerged from a shared passion for building sailboats and iceboats. What began as experiments with epoxy technology in the late 1950s evolved into a collaboration with chemists at Dow Chemical Company's epoxy lab, resulting in formulations that could serve as both adhesive and coating. The formulations developed became the basis of the WEST SYSTEM group of products introduced in 1971, revolutionizing wooden boat construction and marine bonding applications.</p><h3>Pioneering Marine Epoxy Technology</h3><p>West System Epoxy was created by Gougeon Brothers—sailors, builders and formulators who know the engineering and chemistry required for high-performance composite structures. In 1970, the brothers launched Adagio, the first large, all epoxy bonded and sealed wooden boat built without the use of fasteners, demonstrating the structural integrity their epoxy formulations could achieve. For over 50 years, WEST SYSTEM epoxy has been the marine industry's trusted brand for versatile, high-quality epoxy resin systems, expanding from marine applications to woodworking, composite construction, and general repair.</p><h3>Comprehensive Product Lineup</h3><p>The company's signature <a href="/7644-west-systems-west-system-products-201176">West System Products</a> include their renowned two-part epoxy systems featuring 105 Epoxy Resin paired with specialized hardeners, fillers, and additives. West System Epoxy is a versatile, high-quality, two-part epoxy easily modified for a wide range of coating and adhesive applications, especially suited for marine applications requiring superior moisture resistance and high strength. The modular system allows users to customize working time, cure characteristics, and physical properties by selecting different hardeners and incorporating various fillers for specific bonding, fairing, or filleting applications.</p><p>Beyond traditional epoxy resins, West System offers specialized solutions like <a href="/7644-west-systems-vinyl-sealant-repair-kit-19328">Vinyl Sealant Repair Kits</a> designed for quick repairs and sealing applications. The brand also provides an extensive selection of <a href="/7644-west-systems-maintenance-parts-accessories-200647">Maintenance Parts & Accessories</a> including metering pumps, mixing pots, application tools, and roller covers specifically engineered for epoxy work.</p><h3>Engineering Excellence and Quality Standards</h3><p>Not all epoxies are created equal—epoxy brands can vary widely in formulations, quality of raw materials, and suitability for marine environments, and it's much more difficult to balance all of the physical and mechanical properties necessary for a versatile, high-quality marine epoxy. West System epoxies are marine-grade and undergo rigorous testing to ensure their strength, making them suitable for applications ranging from boat building and repair to composite construction, woodworking, and structural bonding in demanding environments.</p><p>As an employee-owned, family run organization operating since 1969, West System maintains the same commitment to quality and innovation that drove the Gougeon brothers' original experiments. Their products bond tenaciously to wood, fiberglass, carbon fiber, metals, and many plastics, providing excellent moisture resistance and creating durable, long-lasting repairs and construction that withstand the harshest conditions.</p>

Part Number

205B
06/21/2036 10:33 AM
Sale Price

$75.82

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

West System 205 Fast Hardener is a medium-viscosity epoxy curing agent designed for use with West System 105 Epoxy Resin. It is useful in a majority of bonding situations and at lower temperatures, producing a rapid epoxy cure that develops physical properties quickly at room temperature.

Key Features:

  • Mix ratio of 5 parts resin to 1 part hardener by volume
  • Pot life of 9 to 12 minutes at 72°F
  • Solid cure in 6 to 8 hours
  • Recommended temperature range of 40°F to 80°F
  • Compatible with 300 Mini-Pump Kit for precise 5:1 ratios
  • Creates a rigid, high-strength, moisture-resistant solid

The 105 Epoxy Resin/205 Fast Hardener system forms a high-strength, moisture-resistant solid bond with excellent bonding and barrier coating properties. Not intended for clear coating. This 0.86 quart size is ideal for marine repairs, boat building, and general composite applications where fast cure times are needed.

Products specifications

Capacity

0.86 Quart

Type

Hardener

Best Use

Fast Hardener for 105 Epoxy Resin

Cure Time

6 to 8 Hours (Working Time 60-70 Minutes) at 72 F

Gave one star because I have yet to use the product. Everything so far, delivery and price has been excellent.

none

On time

Good price, somewhat timely shipping.

Fast

Will shop again

First time user, went smooth without any issues. And lowest price

Found exactly what I was looking, at a great price, would definitely order again!

easy to order, least expensive for same item selling elsewhere for up to50 more, plus shipping. Great site will use again

Good pricing. Order processing is fast and easy.

Good prices on products. Response by email and phone.

very good response with order but it was the wrong part that i was needing. I will be returning both temp switches this week along with the temp sensor to see if you can match up the size and thread pattern that will fit inside the block where the temp se

so far so good interested to see when it shows up and if it is correct item

great fast tech support before purchase

Good with no problems

I ordered a Volant cold air intake for my truck,, really fast shipping and product got home without a scratch,,great website,,this is my first time shopping at autoplicity and im definatley going to shop there again.

At first I did not expect Autoplicity to even carry this part, but in fact they did. Placed the order and I received the part quickly. They were the cheapest for the part after searching nearly everywhere. Will order from them again.<br>Order #8334

Autoplicity had the lowest price on what I ordered. Autoplicity was $30 cheaper than other competitors. I will return to Autoplicity again

I was searching for brake rotors on the Internet for over 3 hours tring to find the best prices-- Autoplicity beat everyone hands down! The best deals out there. Quick response and my order shipped within one business day! Bravo. <br><br>Their website could be improved by auto selecting make/model combinations. I had to double check the part numbers for the pads..they matched the rear pads with the front rotors. I only caught this due to the fact that the pads were extremely cheap..too cheap. The low price was for the rear set as front pads usually at more expensive due to their larger size.

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