---
product_id: 526842393
title: "WEST SYSTEM 406 Colloidal Silica Epoxy Filler Thickening Additive for WEST SYSTEM® Epoxy | Viscosity Control for Strong Structural Bonds | Made in the USA"
brand: "west system"
price: "AR$336364"
currency: ARS
in_stock: true
category: "West System"
url: https://www.desertcart.com.ar/products/526842393-west-system-406-colloidal-silica-epoxy-filler-thickening-additive-west
store_origin: AR
region: Argentina
---

# Water-resistant finish Viscosity control precision Enhances epoxy strength WEST SYSTEM 406 Colloidal Silica Epoxy Filler Thickening Additive for WEST SYSTEM® Epoxy | Viscosity Control for Strong Structural Bonds | Made in the USA

**Brand:** west system
**Price:** AR$336364
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your epoxy game—because every detail counts!

## Quick Answers

- **What is this?** WEST SYSTEM 406 Colloidal Silica Epoxy Filler Thickening Additive for WEST SYSTEM® Epoxy | Viscosity Control for Strong Structural Bonds | Made in the USA by west system
- **How much does it cost?** AR$336364 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/526842393-west-system-406-colloidal-silica-epoxy-filler-thickening-additive-west)

## Best For

- west system enthusiasts

## Why This Product

- Trusted west system brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Boosts epoxy strength and abrasion resistance for durable, professional-grade repairs.
- • **Trusted by Pros:** Highly rated with 4.9 stars and top-ranked in epoxy adhesives for reliable performance.
- • **Off-White Elegance:** Cures to a clean off-white color, blending seamlessly with fiberglass and marine materials.
- • **Master Your Epoxy Flow:** Precision viscosity control prevents messy drips and runoff on vertical and overhead surfaces.
- • **Flawless Fairing Consistency:** Ensures smooth, consistent epoxy fairing compounds every time.

## Overview

West System 406-7 Colloidal Silica is a premium epoxy thickening additive designed to precisely control viscosity, prevent epoxy runoff on challenging surfaces, and enhance the strength and abrasion resistance of fairing compounds. Curing to an off-white color, it’s ideal for professional woodworking and marine applications, delivering a water-resistant, durable finish trusted by experts.

## Description

West System 406-7 Collodial Silica 5.5oz, off-white : West System: desertcart.in: Industrial & Scientific

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005150RUW |
| Best Sellers Rank | #275,725 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,169 in Epoxy Adhesives |
| Brand Name | WEST SYSTEM |
| Colour | off-white |
| Compatible Material | Fibreglass |
| Container Type | Bottle |
| Customer Reviews | 4.9 4.9 out of 5 stars (89) |
| 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 | 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 |
| UPC | 811343011505 783847056576 |
| Unit Count | 5.5 Grams |
| Volume | 5.5 Fluid Ounces |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** WEST SYSTEM
- **Item Form:** Liquid
- **Material:** Resin
- **Specific Uses For Product:** Woodworking

## Images

![WEST SYSTEM 406 Colloidal Silica Epoxy Filler Thickening Additive for WEST SYSTEM® Epoxy | Viscosity Control for Strong Structural Bonds | Made in the USA - Image 1](https://m.media-amazon.com/images/I/71fv2TtXOvL.jpg)

## Frequently Bought Together

- West System 406-7 Collodial Silica 5.5oz, off-white
- West System 105 Epoxy Resin (.98Gallon 10.3-Pounds)

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**Shop now:** [https://www.desertcart.com.ar/products/526842393-west-system-406-colloidal-silica-epoxy-filler-thickening-additive-west](https://www.desertcart.com.ar/products/526842393-west-system-406-colloidal-silica-epoxy-filler-thickening-additive-west)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-08-28*