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West System 4107 Microlight Filler 5 oz - Low-Density Fairing Compound

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

4107
06/21/2036 10:33 AM
Sale Price

$55.03

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 4107 Microlight Filler is an ideal low-density additive for creating lightweight, easily-worked fairing compounds, especially suited for fairing large areas on fiberglass and composite surfaces. This epoxy filler provides superior workability compared to traditional microballoon fillers.

Key Features:

  • Low-density formula creates smooth, lightweight fairing compound when mixed with epoxy resin
  • Approximately 30% easier to sand than 407 Low-Density Filler or conventional microballoons
  • Handles and mixes more easily than comparable fillers for improved workability
  • More economical than standard microballoon products
  • Ideal for fairing large surface areas on boats, marine applications, and composite repairs
  • 5 oz. container size perfect for medium-sized projects

Mix Microlight Filler with West System epoxy resin to achieve desired consistency for filling voids, fairing surfaces, and creating smooth transitions. The low-density formula sands easily to a smooth finish, reducing labor time and effort on large fairing projects.

Products specifications

Color

Beige

Type

Filler

Great experience!!!!!!!

hoping things are as they appear superb

Some items are not auto specific but when you enter the auto info it does not let you purchase the item

Quick easy site to use

Lowest price for my product anywhere, friendly service, and super fast shipping. Will do business with again! A++++

Great price on name brand parts. Quick shipping. Will use again for my next order of parts.

Great prices, only wish you provided free shipping like a lot of other locations do!!!!

good so far

So far so good

Product was shipped super fast. And product was in a well packaged box and everything was there. I would do business with them again in the future. Highly recommended and lowest prices!!!

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