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🛠️ Elevate your epoxy game—because flawless finishes aren’t optional!
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. Curing to an off-white color, it’s ideal for marine, woodworking, and industrial applications where professional results matter.



















| Asin | B005150RUW |
| Best Sellers Rank | #274,309 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #1,171 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 (89) 4.9 out of 5 stars |
| 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 | 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 |
| Specific Uses For Product | Woodworking |
| Unit Count | 5.5 Grams |
| Upc | 811343011505 783847056576 |
| Volume | 5.5 Fluid Ounces |
| Water Resistance Level | Water Resistant |
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