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West System 406-7 Colloidal Silica Epoxy Filler, 5.5 oz | Thickens Epoxy
✅ In stock
F
Grade
Analysis Confidence
100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 29, 2026 9:22 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The price is modestly below what this product ordinarily sells for.
- 📉It has been quite a while since a more competitive price was available, lending today's offer solid comparative value.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
8.27/20
Deal Strength
0/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Amazon.com
🚚 Shipping
Free Shipping
Product Details
✓Epoxy thickening additive for viscosity control – WEST SYSTEM406 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 SYSTEMepoxy systems – Designed for use with WEST SYSTEMepoxy resins and hardeners, this additive helps customize handling without altering the fundamental cure or strength of the base epoxy.
⚙️ Specifications
Brand
West System
Material
Resin
Item Form
Powder
Special Feature
Controllable viscosity, Prevention of epoxy runoff, Improved strength and consistency of fairing compounds
Color
off-white
Item Package Quantity
1
Package Information
Can
Item Volume
5.5 Fluid Ounces
Viscosity
High
Full Cure Time
24 hours
Water Resistance Level
Water Resistant
