---
product_id: 526842393
title: "West System 406-7 Collodial Silica 5.5oz, off-white"
brand: "west system"
price: "2.36 OMR"
currency: OMR
in_stock: false
reviews_count: 5
url: https://www.desertcart.com.om/products/526842393-west-system-406-7-collodial-silica-5-5oz-off-white
store_origin: OM
region: Oman
---

# Enhances strength & abrasion resistance Controls epoxy viscosity precisely Prevents epoxy runoff on vertical surfaces West System 406-7 Collodial Silica 5.5oz, off-white

**Brand:** west system
**Price:** 2.36 OMR
**Availability:** ❌ Out of Stock

## Summary

> 🧪 Elevate your epoxy game—thicken, strengthen, and conquer every surface!

## Quick Answers

- **What is this?** West System 406-7 Collodial Silica 5.5oz, off-white by west system
- **How much does it cost?** 2.36 OMR with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/526842393-west-system-406-7-collodial-silica-5-5oz-off-white)

## 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

- • **Off-White Finish:** Cures to a clean, professional off-white color that blends seamlessly with your work.
- • **Superior Strength Boost:** Reinforce your projects with enhanced durability and abrasion resistance.
- • **Vertical & Overhead Ready:** Say goodbye to gravity—holds epoxy firmly on any surface orientation.
- • **Seamless Mixing Experience:** Ultra-light formula blends smoothly for consistent, flawless fairing compounds.
- • **Precision Viscosity Control:** Master the flow—no drip, no mess, just perfect epoxy every time.

## Overview

West System 406-7 Colloidal Silica is a high-performance epoxy thickening additive designed to precisely control viscosity, prevent runoff on vertical and overhead joints, and improve the strength and abrasion resistance of epoxy fairing compounds. This 5.5oz off-white liquid filler cures to a smooth, consistent finish, making it an essential tool for professional-grade woodworking and marine applications.

## Description

Get On The Water

Review: Great filler from west system A++++++
Review: This stuff works great!! It’s not easy to mix into the epoxy, it’s so insanely light, it just floats away if you’re not very very careful!! Add a little at a time, mix inside a garage or somewhere the wind can’t get to the mixing bowl. Once it’s mixed in, it does a great job thickening up the epoxy. Great for vertical surfaces as it really holds upright well once mixed to the proper thickness.

## 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 |
|---------------|-------|
| ASIN | B005150RUW |
| Best Sellers Rank | #178,934 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #943 in Epoxy Adhesives |
| Brand | WEST SYSTEM |
| Colour | off-white |
| Customer Reviews | 4.9 4.9 out of 5 stars (79) |
| Date First Available | 9 August 2012 |
| Full Cure Time | 24 Hours |
| Generic Name | MARINE ACCESSORIES |
| Global Trade Identification Number | 00811343011505 |
| Included Components | FILLER COLLOIDAL SILICA 5.5 OZ |
| Item Dimensions LxWxH | 53.3 x 40.6 x 28.6 Centimeters |
| Item Form | Liquid |
| Item Height | 11.25 Inches |
| Item Package Quantity | 1 |
| Item Volume | 5.5 Fluid Ounces |
| Item Weight | 156 g |
| Item Width | 16 Inches |
| Item model number | 406-7 |
| Manufacturer | WEST SYSTEM |
| Material | Colloidal Silica |
| Model number | 406-7 |
| Net Quantity | 5.5 Grams |
| Number of Memory Sticks | 1 |
| Number of Pieces | 1 |
| Package Information | Bottle |
| Product Dimensions | 53.34 x 40.64 x 28.58 cm; 155.92 g |
| Special Feature | Controllable viscosity, Prevention of epoxy runoff, Improved strength and consistency of fairing compounds |
| Specific Uses For Product | Woodworking |
| UPC | 811343011505 783847056576 |
| Viscosity | High |
| Viscosity Level | High |
| Water Resistance Level | Water Resistant |

## Product Details

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

## Images

![West System 406-7 Collodial Silica 5.5oz, off-white - Image 1](https://m.media-amazon.com/images/I/31wak5gHKPL.jpg)
![West System 406-7 Collodial Silica 5.5oz, off-white - Image 2](https://m.media-amazon.com/images/I/71fv2TtXOvL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***S on 5 December 2025*

Great filler from west system A++++++

### ⭐⭐⭐⭐⭐ Review
*by M***. on 1 May 2023*

This stuff works great!! It’s not easy to mix into the epoxy, it’s so insanely light, it just floats away if you’re not very very careful!! Add a little at a time, mix inside a garage or somewhere the wind can’t get to the mixing bowl. Once it’s mixed in, it does a great job thickening up the epoxy. Great for vertical surfaces as it really holds upright well once mixed to the proper thickness.

### ⭐⭐⭐⭐⭐ Review
*by M***E on 20 March 2024*

Works well for fairing, very strong

## 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.om/products/526842393-west-system-406-7-collodial-silica-5-5oz-off-white](https://www.desertcart.com.om/products/526842393-west-system-406-7-collodial-silica-5-5oz-off-white)

---

*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-01-24*