

🛠️ Elevate your epoxy game—because flawless finishes aren’t optional.
West System 406-7 Colloidal Silica is a high-viscosity epoxy additive designed to precisely control flow and prevent runoff in vertical and overhead joints. It enhances the strength, abrasion resistance, and consistency of epoxy fairing compounds, curing to an off-white color for a clean, professional look. Ideal for woodworking and vehicle repair, this 5.5oz liquid filler ensures durable, water-resistant results with a 24-hour full cure time.













| Brand | WEST SYSTEM |
| Specific Uses For Product | Woodworking |
| Material | Colloidal Silica |
| Item Form | Liquid |
| Special Feature | Controllable viscosity, Prevention of epoxy runoff, Improved strength and consistency of fairing compounds |
| Colour | off-white |
| Item Package Quantity | 1 |
| Package Information | Bottle |
| Item Volume | 5.5 Fluid Ounces |
| Viscosity | High |
| Full Cure Time | 24 Hours |
| Water Resistance Level | Water Resistant |
| Net Quantity | 5.5 Grams |
| Viscosity Level | High |
| UPC | 811343011505 783847056576 |
| Number of Pieces | 1 |
| Global Trade Identification Number | 00811343011505 |
| Manufacturer | WEST SYSTEM |
| Country of Origin | USA |
| Model number | 406-7 |
| Number of Memory Sticks | 1 |
| Item Weight | 156 g |
| Product Dimensions | 53.34 x 40.64 x 28.58 cm; 155.92 g |
| Item model number | 406-7 |
| Item Height | 11.25 Inches |
| Item Width | 16 Inches |
| Included Components | FILLER COLLOIDAL SILICA 5.5 OZ |
Trustpilot
1 month ago
2 months ago