---
product_id: 5819004
title: "406-2 Colloidal Silica 1.7 oz"
price: "€ 46.00"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.de/products/5819004-406-2-colloidal-silica-1-7-oz
store_origin: DE
region: Germany
---

# Enhanced strength & abrasion resistance Precision viscosity control Superior epoxy thickening 406-2 Colloidal Silica 1.7 oz

**Price:** € 46.00
**Availability:** ✅ In Stock

## Summary

> 🧰 Elevate your epoxy game—no drips, just durable perfection!

## Quick Answers

- **What is this?** 406-2 Colloidal Silica 1.7 oz
- **How much does it cost?** € 46.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/5819004-406-2-colloidal-silica-1-7-oz)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built for Strength:** Boosts epoxy’s structural integrity and abrasion resistance for long-lasting repairs.
- • **Trusted by Experts:** Backed by 310+ reviews with a stellar 4.8-star rating—join the pros who won’t settle.
- • **Master Your Epoxy Flow:** Controls viscosity to prevent drip and runoff on vertical and overhead surfaces.
- • **Professional Grade Purity:** Bone-dry, impurity-free formula ensures reliable, high-quality results.
- • **Consistent, Smooth Application:** Improves fairing compound consistency for flawless finishes every time.

## Overview

West System 406-2 Colloidal Silica is a premium epoxy thickening additive designed to precisely control viscosity, preventing runoff on challenging surfaces. It enhances the strength, abrasion resistance, and consistency of epoxy fairing compounds, curing to a clean off-white finish. Trusted by professionals and hobbyists alike, it delivers reliable, high-performance results for vehicle and specialty repairs.

## Description

West System 406-2 Colloidal Silica 1.7 oz

Review: West System awesomeness - I’ve dealt with a couple of epoxy brands over the years and West System’s is by far the best all around system that includes both epoxy and fillers. These fillers are a bit pricy when you factor in the weight or volume but they work just like fillers should. I have yet to encounter any negative issues with these fillers, and they all appear to be packaged in a professional environment. The fillers come bone dry and don’t have any impurities in them.
Review: Great product - Just sticking her really helps when I am trying to fill cavities or I need structural hold do recommend it

## Features

- 406 Colloidal Silica is an epoxy thickening additive used to control the viscosity of the epoxy.
- Prevents epoxy runoff in vertical and overhead joints.
- Can be used to improve strength, abrasion resistance, and consistency of epoxy fairing compounds.
- Cures to an off-white color.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.8 out of 5 stars 310 Reviews |

## Images

![406-2 Colloidal Silica 1.7 oz - Image 1](https://m.media-amazon.com/images/I/61B9MCaAKPL.jpg)

## Questions & Answers

**Q: Does the resin remain clear after this is added?  (Some of the other filler additives say that they cure red/brown.)**
A: If using west system epoxy 205 or 206 hardener resin is redish or purple.  The filler is white and turns into a tranlucent opaque of color of resin. NO RESIN WILL NOT REMAIN CLEAR.

## Customer Reviews

### ⭐⭐⭐⭐⭐ West System awesomeness
*by G***Y on February 2, 2024*

I’ve dealt with a couple of epoxy brands over the years and West System’s is by far the best all around system that includes both epoxy and fillers. These fillers are a bit pricy when you factor in the weight or volume but they work just like fillers should. I have yet to encounter any negative issues with these fillers, and they all appear to be packaged in a professional environment. The fillers come bone dry and don’t have any impurities in them.

### ⭐⭐⭐⭐⭐ Great product
*by A***L on July 31, 2024*

Just sticking her really helps when I am trying to fill cavities or I need structural hold do recommend it

### ⭐⭐⭐⭐⭐ Works great as an epoxy thickener
*by J***D on April 9, 2024*

I mixed some of this colloidal silica with a 2 part epoxy glue to thicken it up. The more you add the thicker the glue mixture gets. The powder is super light, and floats everywhere, so a mask is not a bad idea. Handle it slowly and carefully.

## Frequently Bought Together

- West System 406-2 Colloidal Silica 1.7 oz
- TotalBoat-14409 Marine Gelcoat for Boat Building, Repair and Composite Coatings (White, Quart with Wax)
- Wax Additive - 4 oz Surfacing Agent for use with Gelcoat and Polyester resins

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**Shop now:** [https://www.desertcart.de/products/5819004-406-2-colloidal-silica-1-7-oz](https://www.desertcart.de/products/5819004-406-2-colloidal-silica-1-7-oz)

---

*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-01-24*