My Account
Shopping Cart

West System 105B Epoxy Resin - .98 Gallon

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

105B
06/03/2036 10:29 AM
Sale Price

$122.82

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

West System 105B Epoxy Resin is a clear, light amber, low-viscosity liquid epoxy resin designed for marine, woodworking, and composite applications. This professional-grade resin must be mixed with a West System hardener to create a high-strength epoxy system suitable for bonding, coating, and laminating.

Key Features:

  • Low viscosity formula for excellent wetting and penetration of wood fibers, fiberglass, and porous surfaces
  • Bonds effectively to wood, fiberglass, reinforced plastics, and some metals
  • Self-leveling consistency ideal for roller and brush applications
  • Cures at temperatures from 40°F to 90°F with appropriate hardener selection
  • High strength-to-weight ratio when cured
  • Can be sanded, shaped, machined, and painted after curing
  • Excellent moisture resistance and dimensional stability
  • Compatible with West System 205 or 206 hardeners (sold separately)

The .98 gallon (3.7 liter) size is ideal for medium to large projects. West System 105 Resin must be mixed with the appropriate hardener at a 5:1 ratio by volume. This resin is widely used for boat building and repair, wooden boat restoration, composite fabrication, structural bonding, fiberglass lamination, and woodworking applications.

Products specifications

Capacity

1 gallon

Type

Two-Part Epoxy Resin

Best Use

Formulated Specifically to Waterproof and Bond Wood, Fiberglass and Metals

Cure Time

Variable

The above rating says it all.

Easy ordering

Easy to use website. Fast payment and easy payment options. Excellent prices!

Great

Excellent service. Received what I ordered sooner than anticipated.

fast delivery - works great

ok stuff thanks.

The proof is in the pudding. I await your follow through.

Good so far

Above Average

Cheapest priced ARP head studs on the internet. A++ I will definitely do more business with Autoplicity.

I was still L@@KING for 'options'--didn't expect it to go thru so fast!! THANKS, great job.

Quick order

Very easy site to use!

quick and easy! almost forgot-great prices!!

Pretty easy transaction

great

very fast and easy.

Smooth transaction & fast service...

Good so far

Good

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy