My Account
Shopping Cart

West System 40415 High-Density Epoxy Filler 15.2 oz

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

40415
06/21/2036 12:11 PM
Sale Price

$29.67

In Stock (10+)

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

West System 40415 High-Density Filler is a premium thickening additive engineered for applications requiring maximum structural strength and durability. This specialized epoxy filler is formulated to deliver superior physical properties in demanding bonding applications where high cyclic loads and stress are anticipated.

Key Features:

  • Developed specifically for hardware bonding under high cyclic load conditions
  • Maximum strength formulation ideal for structural filleting and gap filling
  • Excellent adhesion and mechanical properties for critical joints
  • Cures to an off-white color for easy identification
  • 15.2 oz container provides ample material for multiple projects
  • Compatible with West System epoxy resin systems

Applications:

  • Bonding hardware and metal fittings to composite structures
  • High-strength structural fillets in marine, automotive, and aerospace applications
  • Gap filling where maximum load-bearing capacity is required
  • Reinforcing joints subject to vibration and repeated stress cycles

This high-density filler creates strong, reliable bonds that maintain integrity under demanding conditions, making it the preferred choice for professional boat builders, composite fabricators, and repair technicians who require uncompromising structural performance.

Products specifications

Type

Filler

Great

once you know the sku number, it's quick and easy

Order filled promptly and accurately. Would not hesitate to place future orders

easy buy

Good product and delivery. Happy shopper

Just what I ordered at a great price

You sent twice the number of items ordered. Would you like me to return the redundant order?

It was fast and easy.

easy

Definitely the best price online. The website search function could stand to be better, but I was able to find the product I was looking for eventually and again, the price was unbeatable!

Great prices ...

good so far

easy to order and quick. 4 stars vs 5: only need to cross reference the Motorcraft Part number to the vehicle part number which I used to search

very good

OK, but shipping cost not determined until after processing to paypal.

Keep up the good work. Thanks.

They had the lowest price and great communication. Will order from them again thanks

Autoplicity not only had the best price, but they also shipped quickly. A+ Seller

All pieces ordered were shipped promptly and arrived in very great shape. I will be ordering from this site again.

Great Price Fast Shipping. Would come back.

Autoplicity has great customer service, great communication along with fast shipping! When I called with a question about my order I didn't have to wait forever on the phone and the representative was very helpful. I'll definitely be ordering from autoplicity again.

Ordered a VP Racing fuel container and fill tube late Friday and it's already on the way. <br>Best price online and very quick service. Great transaction will definitely order from vendor again. <br>Thanks Autoplicity.

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