Collection: WEST SYSTEM 404, 406, and 407 Fillers

Enhance the versatility and performance of your epoxy projects with the WEST SYSTEM 404, 406, and 407 Fillers collection. Designed to modify the properties of WEST SYSTEM 105 Epoxy Resin and hardener mixtures, these high-quality fillers provide tailored solutions for bonding, filleting, fairing, and filling in marine, automotive, and composite applications. Each filler is engineered to optimize strength, workability, and finish for professional-grade results.

Key Features and Capabilities:

• 404 High-Density Filler: A premium thickening additive for maximum strength in bonding and gap-filling applications. Ideal for structural bonding of wood, fiberglass, and metals, this filler creates a robust, high-density mixture perfect for high-load areas like keel joints or hardware bonding.
• 406 Colloidal Silica Filler: A versatile, lightweight filler for general-purpose bonding, filleting, and laminating. It provides excellent sag resistance and smooth consistency, making it ideal for creating strong, smooth fillets in boat building or for laminating composite structures.
• 407 Low-Density Filler: A lightweight, easily sandable filler designed for fairing and surface smoothing. Perfect for creating smooth, fair surfaces on hulls or other large areas, it minimizes weight while providing a durable, easy-to-shape finish for cosmetic applications.
• Customizable Mixtures: Each filler can be blended with 105 Epoxy Resin and hardeners (e.g., 205 Fast or 206 Slow) to achieve the desired consistency, from thin laminating mixes to thick, non-sagging pastes, offering flexibility for diverse project needs.
• Superior Performance: Enhances the epoxy’s tensile strength, moisture resistance, and durability, ensuring long-lasting results in demanding marine and automotive environments.
• Multiple Sizes: Available in various container sizes to suit projects of any scale, from small repairs to large-scale fairing or structural bonding tasks.
• Easy to Use: Mixes seamlessly with epoxy resin for smooth application, with excellent compatibility and minimal clumping, ensuring a consistent, professional finish.

The WEST SYSTEM 404, 406, and 407 Fillers collection empowers you to customize your epoxy for specific tasks, delivering unmatched strength, workability, and aesthetics. Shop now to elevate your marine, automotive, or composite projects with the trusted performance of WEST SYSTEM fillers.