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West System 406-7 Colloidal Silica is a premium epoxy thickening additive designed to precisely control viscosity, prevent runoff on challenging surfaces, and enhance the strength and abrasion resistance of epoxy fairing compounds. Ideal for professional woodworking and marine repairs, it cures to a clean off-white finish, ensuring both performance and aesthetic excellence.



















| ASIN | B005150RUW |
| Best Sellers Rank | #238,627 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,061 in Epoxy Adhesives |
| Brand Name | WEST SYSTEM |
| Colour | off-white |
| Compatible Material | Fibreglass |
| Container Type | Bottle |
| Country of Publication | USA |
| Customer Reviews | 4.9 4.9 out of 5 stars (88) |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00811343011505 |
| Included Components | FILLER COLLOIDAL SILICA 5.5 OZ |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | MARINE ACCESSORIES |
| Item Weight | 5.5 Ounces |
| Manufacturer | WEST SYSTEM |
| Manufacturer Part Number | 406-7 |
| Material Type | Colloidal Silica |
| Model | 406-7 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Controllable viscosity, Prevention of epoxy runoff, Improved strength and consistency of fairing compounds |
| Specific Uses For Product | Woodworking |
| UPC | 811343011505 783847056576 |
| Unit Count | 5.5 Grams |
| Viscosity Level | High |
| Volume | 5.5 Fluid Ounces |
| Water Resistance Level | Water Resistant |
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