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West Systems 407B Low Density Filler - 14 Lb

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

407B
06/01/2036 9:13 AM
Sale Price

$784.23

In Stock (9)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

West Systems 407B Low Density Filler is a blended microballoon-based additive designed for creating lightweight fairing compounds when mixed with epoxy resin. This versatile filler produces easily workable putties that sand and carve smoothly, making it ideal for shaping and fairing applications on fiberglass, wood, and composite surfaces.

Key Features:

  • Microballoon-based formula creates low-density fairing compounds
  • Easy to sand and carve for precision shaping work
  • Excellent strength-to-weight ratio for structural fairing applications
  • Cures to a dark red-brown color for easy identification
  • Compatible with West Systems epoxy resin systems
  • Ideal for filling voids, fairing hull surfaces, and creating lightweight cores

This 14-pound container provides ample material for marine repairs, boat building, composite fabrication, and general fairing work. Mix with West Systems epoxy resin to achieve desired consistency—add more filler for a thicker putty or less for a smoother fairing compound. Perfect for use in marine, automotive, and aerospace applications where lightweight, easily shaped fairing material is required.

Products specifications

Type

Filler

Quick and easy to order

Just ordered, website is easy to use. Hope the shipping and receiving go well. Wow, received order in 4 days! Great service!

Great price.

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Good price, fast delivery

so far so good

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great prices & shipping

Really wish I wouldn't had paid for two day shipping. It was a totally waste of $25.

A few back and forth pages to get it right

Payment with Amazon is great!!

I saw nothing but good reviews and the money back guarantee, these together helped me finalize my decision to order from this site. I ordered just before the weekend started so I think it took my order a little longer to process. I was relieved to find that my order was shipped on the day I ordered it, It just took a little while for the email traffic to catch up. So far things have been good!!!

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