---
product_id: 604547490
title: "WEST SYSTEM 406 Colloidal Silica Filler 60g - Thickens Epoxy for Wood, Marine & Fibreglass Repair - Waterproof, Multi Purpose Adhesive Powder for 2 Part Epoxy - for Interior & Exterior Use"
brand: "west system"
price: "₨676"
currency: SCR
in_stock: true
reviews_count: 9
category: "West System"
url: https://www.desertcart.sc/products/604547490-west-system-406-colloidal-silica-filler-60g-thickens-epoxy-wood
store_origin: SC
region: Seychelles
---

# Waterproof for marine-grade durability Versatile for wood, fiberglass & outdoor use Thickens epoxy for precise control WEST SYSTEM 406 Colloidal Silica Filler 60g - Thickens Epoxy for Wood, Marine & Fibreglass Repair - Waterproof, Multi Purpose Adhesive Powder for 2 Part Epoxy - for Interior & Exterior Use

**Brand:** west system
**Price:** ₨676
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your epoxy game — don’t let your repairs run away!

## Quick Answers

- **What is this?** WEST SYSTEM 406 Colloidal Silica Filler 60g - Thickens Epoxy for Wood, Marine & Fibreglass Repair - Waterproof, Multi Purpose Adhesive Powder for 2 Part Epoxy - for Interior & Exterior Use by west system
- **How much does it cost?** ₨676 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/604547490-west-system-406-colloidal-silica-filler-60g-thickens-epoxy-wood)

## 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

- • **Trusted Industry Standard:** Highly rated and relied upon by professionals for consistent, durable results.
- • **Multi-Surface Compatibility:** Perfectly thickens epoxy for wood, fiberglass, and all your repair projects.
- • **Optimized Epoxy Performance:** Add 3-8% by weight to your 2-part epoxy for enhanced curing and superior bonding.
- • **Precision Viscosity Control:** Prevents resin flow on vertical & overhead surfaces for flawless application every time.
- • **Marine-Grade Waterproof Strength:** Ensures long-lasting, weatherproof bonds ideal for boats and outdoor repairs.

## Overview

WEST SYSTEM 406 Colloidal Silica Filler is a premium thickening additive designed to enhance 2-part epoxy resin. It prevents resin sagging on vertical and overhead surfaces, delivers waterproof, high-strength bonds, and is ideal for marine, wood, and fiberglass repairs. Trusted by professionals, it optimizes epoxy viscosity and curing for durable, multi-purpose adhesive applications both indoors and outdoors.

## Description

WEST SYSTEM 406 Colloidal Silica Filler 60g - Thickens Epoxy for Wood, Marine & Fibreglass Repair - Waterproof, Multi Purpose Adhesive Powder for 2 Part Epoxy - for Interior & Exterior Use : desertcart.co.uk: Business, Industry & Science

Review: Good stuff - My go-to additive for West system epoxy for bonding
Review: Stops it running - Industry standard for thickening epoxy resin

## Features

- Epoxy Adhesive Filler: This Colloidal Silica epoxy filler is a general thickening additive suitable for bonding, gap-filling and filleting. Prevents resin flow on vertical and overhead surfaces, and controls the viscosity of the epoxy. Colour: off-white
- High Strength: A durable & waterproof filler that enhances epoxy resin, delivering superior bonding for marine epoxy resin, wood repair, and all-purpose filler applications
- Versatile Uses: Use with a 2 part epoxy resin kit to provide optimal curing as part of a fibreglass repair kit, for outdoor adhesive tasks, for wood repair filler, and marine epoxy filler applications. Add 3% to 8% by weight to the resin/hardener mix
- Pair with Epoxy & Hardener: Combine this powder filler with your two-part epoxy and resin accessories for enhanced performance and versatility in all your repairs
- Waterproof Durability: This epoxy filler exterior solution ensures long-lasting, weatherproof adhesion, making it an essential component in marine epoxy resin and outdoor adhesive tasks

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CSKG51MN |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 32,488 in DIY & Tools ( See Top 100 in DIY & Tools ) 2,932 in Adhesives & Sealers |
| Colour | Cures to an off-white colour. |
| Customer Reviews | 4.6 4.6 out of 5 stars (45) |
| Date First Available | 9 Oct. 2018 |
| Included components | WEST SYSTEM® Colloidal Silica Filler (60g) |
| Item Package Quantity | 1 |
| Item Weight | 150 g |
| Item model number | 406-1 |
| Manufacturer | Wessex Resins & Adhesives |
| Material | Colloidal Silica |
| Package Dimensions | 16.7 x 11.1 x 10.5 cm; 150 g |
| Part number | 406-1 |
| Size | Small |
| Special Features | Thickening additive for epoxy. |
| Specific uses | Marine epoxy resin, Fibreglass repair, Outdoor adhesive tasks, Wood repair filler, Marine epoxy filler applications |
| Style | 406 Colloidal Silica Filler |

## Product Details

- **Brand:** West System
- **Item form:** Powder
- **Material:** Colloidal Silica
- **Special feature:** Thickening additive for epoxy.

## Images

![WEST SYSTEM 406 Colloidal Silica Filler 60g - Thickens Epoxy for Wood, Marine & Fibreglass Repair - Waterproof, Multi Purpose Adhesive Powder for 2 Part Epoxy - for Interior & Exterior Use - Image 1](https://m.media-amazon.com/images/I/61DdKPicdmL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good stuff
*by D***M on 2 February 2026*

My go-to additive for West system epoxy for bonding

### ⭐⭐⭐⭐⭐ Stops it running
*by M***E on 30 September 2025*

Industry standard for thickening epoxy resin

### ⭐⭐⭐⭐⭐ Makes 2 part epoxy nice and stiff...
*by P***S on 20 March 2025*

I used this to make 2 part 5min epoxy "stiffer" so it would not run downhill when used in small quantities.. this stuff is very, very light weight and quite fly-away and to use 5% by weight is actually quite a lot, I guess I use about half that amount and the epoxy goes about 80% of where I need it to be but just so much better than raw epoxy so its worth the fuss of mixing it... Really unique product, like it a lot!!

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**Shop now:** [https://www.desertcart.sc/products/604547490-west-system-406-colloidal-silica-filler-60g-thickens-epoxy-wood](https://www.desertcart.sc/products/604547490-west-system-406-colloidal-silica-filler-60g-thickens-epoxy-wood)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-22*