{"product_id":"west-system-403-microfibers-filler-high-strength-structural-epoxy-wood-filler-ad-20260806-211757-b000","title":"WEST SYSTEM 403 Microfibers Filler | High-Strength Structural Epoxy Wood Filler Additive for WEST SYSTEM® Epoxy | Marine and Exterior Epoxy Joint Filler | Made in the USA","description":"\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e West System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlavor:\u003c\/strong\u003e Unflavored\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Weight:\u003c\/strong\u003e 16 ounces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e urea-resin-adhesives\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 20 Ounce\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e 403-28\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e WEST SYSTEM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty Description:\u003c\/strong\u003e LIMITED WARRANTY\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAge Range Description:\u003c\/strong\u003e Adult\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Form:\u003c\/strong\u003e Paste\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Nype Name:\u003c\/strong\u003e FILLER MICROFIBERS 20 OZ\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 403-28\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiquid Volume:\u003c\/strong\u003e 20 fluid ounces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAbout this item\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-strength epoxy thickening filler – 403 Microfibers is a blend of fine fibers designed to thicken mixed WEST SYSTEM Epoxy resin and hardener into a strong, multi-purpose adhesive. It is commonly used for structural bonding, especially when joining wood components.\u003c\/li\u003e\n\u003cli\u003eCreates a gap-filling structural adhesive – When added to mixed epoxy, 403 forms a non-slumping adhesive that bridges gaps between parts while still wetting out and penetrating wood fibers for durable bonds.\u003c\/li\u003e\n\u003cli\u003eAdjustable consistency for different bonding tasks – The amount of filler added controls the viscosity of the epoxy mixture, allowing you to create both light adhesive blends and thicker bonding mixtures suited for joints and repairs.\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple WEST SYSTEM epoxy systems – 403 Microfibers can be used to thicken any WEST SYSTEM epoxy, including 105 Resin-based systems, G\/flex epoxy, and G\/5 Five-Minute Adhesive.\u003c\/li\u003e\n\u003cli\u003eConsistent mixing for reliable results – For projects requiring multiple batches, measure the filler added to the first mixture and repeat the same ratios to maintain consistent viscosity and bonding performance.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"West System Store","offers":[{"title":"Default Title","offer_id":49200763732123,"sku":"B0006JJ9U2","price":72.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0761\/1973\/6475\/files\/71grgPkKFhL._AC_SL1500.jpg?v=1786018678","url":"https:\/\/www.fixlydiyshop.com\/products\/west-system-403-microfibers-filler-high-strength-structural-epoxy-wood-filler-ad-20260806-211757-b000","provider":"FixlyDIY","version":"1.0","type":"link"}