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West System 403-9 Microfibers Adhesive Filler 6oz

        West System 403-9 Microfibers Adhesive Filler 6oz

        SKU: WS4039

        WEST SYSTEM® 403 Microfibers Adhesive Filler is a high-strength, fine fiber epoxy thickening additive designed to create durable structural adhesives with excellent gap-filling performance. Ideal for bonding wood, fiberglass, and other porous materials, it enhances the strength and penetration of WEST SYSTEM epoxy while producing tough, reliable bonds for marine, woodworking, and general composite applications.

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        West System Epoxies
        • size: 6oz
          6oz
          20oz
        • $26.03
        In stock(964 items available)

        WEST SYSTEM® 403 Microfibers Adhesive Filler is a premium adhesive filler formulated to increase the bonding strength of WEST SYSTEM epoxy systems. Made from a fine blend of cellulose microfibers, it thickens mixed epoxy resin and hardener into a strong, gap-filling adhesive that penetrates wood fibers while maintaining exceptional holding power. It is the preferred filler for structural wood bonding, laminating, scarf joints, strip planking, and other applications where maximum adhesion is critical.

        When blended with WEST SYSTEM 105 Epoxy Resin and any compatible 200 Series Hardener, 403 Microfibers creates a versatile adhesive that resists sagging while still wetting porous surfaces for superior mechanical and chemical bonding. It also works with G/flex® 650 and G/5® Five-Minute Adhesive, making it suitable for a wide range of repair and fabrication projects. The cured mixture is off-white in color and develops excellent structural strength for both marine and general-purpose applications.

        Features & Benefits

        • Creates a high-strength structural epoxy adhesive
        • Excellent for bonding wood, plywood, and other porous materials
        • Superior gap-filling capability without sacrificing penetration into wood fibers
        • Thickens epoxy to a non-sag consistency for vertical and overhead applications
        • Ideal for laminating, scarf joints, fillets, strip planking, and composite construction
        • Off-white color blends well in many woodworking and composite projects
        • Compatible with WEST SYSTEM 105 Resin/200 Series Hardeners, G/flex® 650, and G/5® Adhesive
        • Suitable for marine, woodworking, home repair, and industrial composite applications



          • SKU
            WS4039
          • Weight
            0.62 LB
          • Dimensions (L x W x H)
            5.25 x 5.25 x 10.75 IN
        • size
          6oz
        • Manufacturer
          West System Epoxies
        • UNIT
          EACH
        • Availability
          In Stock
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        • Shipping charges are based upon the size, weight and destination of the shipment. 
        • Most orders are shipped F.O.B., Fort Pierce, FL.
        • We ship by UPS, Parcel Select Ground, common carrier, and airfreight. 
        • We ship most orders with UPS. 
        • UPS next day, two-day or three day select can be accommodated for most orders upon request and will be invoiced accordingly.
        • For oversized orders, we will provide you with a freight rate with a common carrier.
        •  Orders containing Hazardous Materials will only be shipped UPS Ground or by Common Carrier.     
        • Most orders placed before 2:00 (our time) will ship same day.    

         

        Methods of Domestic shipment:

         

        UPS Ground
        UPS Next Day*
        UPS 2nd Day*
        UPS 3 Day*
        USPS Priority Mail
        USPS Express Mail
        Common Carrier

        We accept the following payment methods:

        Accepted payment methods


        • Return within 30 days and receive a full refund
        • No restocking fee - if returned within 30 days
        • Call 1-877-57-RESIN for your Return Authorization #
        • Please write your Return Authorization # on the outside of the box and include your customer number, Return Authorization # and a list of the items being returned inside the box.
        • All returned products must be unused and with all original packaging and packing materials.
        • No returns for special order items, electronics, cut lengths of material or hazardous materials, such as paint, resins and adhesives.
        • Return shipping must be prepaid by the customer unless the error was ours.

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