New Arrivals/Restock

WEST SYSTEM 406 Colloidal Silica Epoxy Filler Thickening Additive for WEST SYSTEM Epoxy | Viscosity Control for Strong Structural Bonds | Made in the USA

flash sale iconLimited Time Sale
Until the end
03
24
47

$12.38 cheaper than the new price!!

Free shipping for purchases over $99 ( Details )
Free cash-on-delivery fees for purchases over $99
Please note that the sales price and tax displayed may differ between online and in-store. Also, the product may be out of stock in-store.
New  $20.63
quantity

Product details

Management number 218164075 Release Date 2026/05/03 List Price $8.25 Model Number 218164075
Category

West System 406-2 Colloidal Silica 1.7 oz

  • Epoxy thickening additive for viscosity control – WEST SYSTEM 406 Colloidal Silica is a finely powdered Made in the USA additive used to thicken epoxy and control viscosity for improved handling in specific applications.
  • Prevents epoxy runoff – Adding this colloidal silica to epoxy resin and hardener mixtures helps prevent runoff on vertical and overhead surfaces, improving material placement without sagging.
  • Enhances fairing compound performance – This additive can be used to improve epoxy fairing compounds by increasing strength, consistency, and abrasion resistance where a thicker body is needed.
  • Cures to a creamy off-white color – Mixed into epoxy, 406 colloidal silica produces a stable, creamy off-white paste suitable for fairing and other structural tasks.
  • Compatible with WEST SYSTEM epoxy systems – Designed for use with WEST SYSTEM epoxy resins and hardeners, this additive helps customize handling without altering the fundamental cure or strength of the base epoxy.
Department unisex-adult
Item Weight 5 ounces
Manufacturer Gougeon Brothers, Inc.
Item model number 406-2
Product Dimensions 23 x 15 x 8 inches
Is Discontinued By Manufacturer No

Correction of product information

If you notice any omissions or errors in the product information on this page, please use the correction request form below.

Correction Request Form

Product Review

You must be logged in to post a review