405 Filleting Blend Adhesive Filler is a strong, wood-toned epoxy filler. Add it to your epoxy mix when making epoxy joints and fillets on naturally finished wood. It mixes easily with epoxy. This product helps you create smooth fillets that will need only a little sanding. Its color is a consistent brown. 405 Filleting Blend can be blended with other WEST SYSTEM® Fillers to modify the shade of your epoxy mix. You can blend it into any WEST SYSTEM 105 Epoxy Resin®/200 Series Hardener combination, G/flex® 650, or G/5® Five-Minute Adhesive.
Modifying with fillers and additives makes WEST SYSTEM epoxy extremely versatile for a wide variety of bonding and coating applications. Epoxy can be thickened to the ideal consistency needed for a particular job. Epoxy thickened with adhesive (high-density) fillers strengthens structural bonds, bridges gaps, and fills voids. Epoxy thickened with fairing (low-density) fillers is easily sanded and shaped after it cures.
A fillet is a continuous bead of thickened epoxy mixture applied to the angle created between two parts. It increases the surface area of the bond and serves as a structural adhesive and brace. Because epoxy can be thickened with high-density fillers into a non-slumping consistency it can bridge large gaps in wood joints, without loss of strength, thus saving a great deal of time labor otherwise needed to create a strong joint.