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404 High Density

Adhesive Filler

404 High-Density Adhesive Filler is an epoxy thickening additive. We developed it for maximum physical adhesive properties in hardware bonding, or anywhere that high-cyclic loads are anticipated. Blended with epoxy, it makes an excellent gap filler or structural fillets. Use this filler wherever you need an especially strong bond. You can blend it into any WEST SYSTEM 105 Resin/200 Series Hardener combination, G/Flex Epoxy 650, or G/5 Five-Minute Adhesive.

Designed for :

  • Wood Bonding
  • Adhesion
  • Gap Filling
  • Fastener Bonding

 

Pair With 105 System Filler Selection Guide Selection Guide where to buy see sds
404 High-Density

PROJECT USES:

Thicken epoxy blended resin/hardener and create a multi-purpose adhesive for:

  • Marine
  • Boat Repair
  • Hardware Bonding
  • Coating
  • Wood Fillets

PRODUCT SPECIFICATIONS:

  • Color | Off-White
  • Cures to off-white color
  • Fine fiber powder

PRODUCT SIZES:

  • 404-15 | 15.2 oz
  • 404-45 | 43 oz
  • 404-B | 30 lb

404 High Density

404 High-Density

Thickening

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.
Filler Selection Guide
404 High-Density

Bonding with Fillets

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 and labor otherwise needed to create a strong joint.
How to Apply a Fillet

Using WEST SYSTEMFillers & Additives

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