West System – 404 High Density Filler

12.5247.76 ex. VAT

WEST SYSTEM – 404 High Density Filler is a thickening additive developed for maximum physical properties in hardware bonding where high-cyclic loads are anticipated. It can also be used for filleting and gap filling where maximum strength is necessary.

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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 Epoxy Resin®/200 Series Hardener combination, G/flex® 650, or G/5® Five-Minute Adhesive.


  • Wood Bonding
  • Adhesion
  • Gap Filling
  • Fastener Bonding


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

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


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


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