









🛠️ Elevate your repairs with precision-thickened, waterproof epoxy power!
WEST SYSTEM 406 Colloidal Silica Filler is a 275g thickening additive designed to enhance 2-part epoxy resin by controlling viscosity and preventing resin flow. Ideal for marine, wood, and fiberglass repairs, it delivers waterproof, durable bonding and gap filling for both interior and exterior applications.





| Manufacturer | Wessex Resins & Adhesives Ltd |
| Part number | 406-2 |
| Item Weight | 590 g |
| Package Dimensions | 33.2 x 15.6 x 15.5 cm; 590 g |
| Item model number | 406-2 |
| Size | Large |
| Colour | Cures to an off-white colour. |
| Style | 406 Colloidal Silica Filler |
| Material | Epoxy Resin |
| Item Package Quantity | 1 |
| Special Features | Thickening additive for epoxy. |
| Specific uses | Marine epoxy resin, wood repair, fibreglass repair, outdoor adhesive tasks |
| Included components | WEST SYSTEM® Colloidal Silica Filler (275g) |
| Batteries Required? | No |
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