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🛠️ Elevate your epoxy game—thicken, strengthen, and conquer every surface!
West System Colloidal Silica (5.5 oz) is a high-performance epoxy thickening additive designed to control viscosity, prevent runoff on vertical and overhead joints, and enhance the strength and abrasion resistance of epoxy fairing compounds. It cures to an off-white color and is ideal for woodworking and fiberglass applications, delivering professional-grade results with water-resistant durability.



















| ASIN | B005150RUW |
| Best Sellers Rank | #117,252 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #162 in Wood Filler |
| Brand Name | West System |
| Color | Off-White |
| Compatible Material | Fiberglass |
| Container Type | Aerosol Can |
| Customer Reviews | 4.9 4.9 out of 5 stars (82) |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00811343011505 |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Weight | 5.5 Ounces |
| Manufacturer | WEST SYSTEM |
| Material Type | Epoxy Resin |
| 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 |
| Part Number | 406-7 |
| Specific Uses For Product | Woodworking |
| UPC | 811343011505 783847056576 |
| Unit Count | 162.65 Milliliters |
| Viscosity Level | High |
| Volume | 5.5 Fluid Ounces |
| Water Resistance Level | Water Resistant |
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