My Account
Shopping Cart

West Systems 73820 Biaxial Fiberglass Fabric with Mat 50" x 20 Yards

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

73820
06/21/2036 4:19 PM
Sale Price

$1,047.12

4 left at this price

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The West Systems 73820 is a high-performance 17 oz. non-woven E-glass biaxial fabric designed for marine and composite applications. This engineered fabric features two layers of fiberglass oriented at ±45 degrees, held together with light stitching and backed with a 0.75 oz./sq. ft. chopped strand mat for enhanced bonding properties.

Key Features:

  • Biaxial ±45° fiber orientation provides excellent torsional strength and flexibility
  • Non-crimped flat fibers deliver superior stiffness compared to traditional woven fabrics
  • Minimal print-through for smooth, professional surface finishes
  • Mat backing improves resin adhesion and secondary bonding capabilities
  • 50-inch width x 20 yard roll provides extensive coverage for large projects
  • 17 oz. per square yard weight offers optimal strength-to-weight ratio

This fabric is ideal for structural repairs, laminate reinforcement, and composite fabrication where diagonal fiber orientation is needed to handle multi-directional loads. The combination of biaxial reinforcement and mat backing makes it particularly well-suited for hull repairs, deck reinforcement, and general fiberglass layup work with epoxy resin systems.

Products specifications

Size

50" wide x 20 yd. roll

Being on disability with spinal injury I like the ease of ordering.

Excellant

the order processes was quick and easy

Great

greaat price

first time shopper. Very pleased with the service and price. Will buy from again.

Lowest price on the Internet, lightning fast shipping! Check Autoplicity before you go anywhere else.

checkout software gave me some grief first time around but finally worked ok.

good price and they have a lot of choices

Great service and super quick shipping. Will use them again

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