---
product_id: 15278637
title: "System Three Silica Thickener, 1 Qt Tub, White"
brand: "systemthree"
price: "€ 61.21"
currency: EUR
in_stock: true
reviews_count: 10
category: "Systemthree"
url: https://www.desertcart.be/products/15278637-system-three-silica-thickener-1-qt-tub-white
store_origin: BE
region: Belgium
---

# 1 quart easy-to-measure tub High-strength viscosity control Non-sagging, smooth epoxy thickener System Three Silica Thickener, 1 Qt Tub, White

**Brand:** systemthree
**Price:** € 61.21
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your epoxy game—thicken, strengthen, and never sag behind!

## Quick Answers

- **What is this?** System Three Silica Thickener, 1 Qt Tub, White by systemthree
- **How much does it cost?** € 61.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/15278637-system-three-silica-thickener-1-qt-tub-white)

## Best For

- systemthree enthusiasts

## Why This Product

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

## Key Features

- • **Non-Sag Formula:** Ensures smooth, high-strength fills that stay put—no drips, no mess.
- • **User-Friendly Mixing:** Add incrementally and stir from bottom up for flawless results.
- • **Versatile Application:** Perfect for woodworking, marine repairs, and automotive fixes.
- • **Eco-Conscious Crafting:** Made in the USA with sustainable materials since 1979.
- • **Precision Viscosity Control:** Master your epoxy mix with exact consistency every time.

## Overview

System Three Silica Thickener is a premium hydrophilic fumed silica paste designed to precisely control epoxy resin viscosity. This 1-quart tub offers a high-strength, non-sagging, smooth consistency ideal for woodworking, marine, and automotive repairs. Easy to mix incrementally, it enhances epoxy performance while supporting sustainable manufacturing practices since 1979.

## Description

Buy System Three Silica Thickener, 1 Qt Tub, White: Sealants - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Affordable and good. - Use this with their microglass beads and it's much cheaper than most fillers. Sands easily if you mix it to peanut butter consistency. I used with WestSystems 105. Great fairing compound. Downside is that you have to mix two different powders which takes a few more seconds.
Review: Great product - This material works great for stiffening the epoxy resin. I used it to fill holes where a kicker was mounted through the transom and to fill holes on the vertical.

## Features

- Premium Thickener: Also referred to as colloidal or hydrophilic fumed silica, our silica thickener is an excellent thixotropic agent designed to help control the viscosity of mixed epoxy systems
- Measure And Mixing: Mix the amount of resin, Part A, and hardener, Part B, desired, then add silica thickener in increments, and mix thoroughly, stirring from the bottom to the top until the desired consistency is reached
- Features: This epoxy thickener easily mixes into epoxy resin systems
- Consistency: Silica Thickener can be used alone to create a very smooth, non-sagging, high-strength mixture, but can also be combined with other fillers or fibers to prevent sagging
- Cleanup: Clean hands, exposed skin, and work surfaces with mild soap and water

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002K9R51Q |
| Best Sellers Rank | #643,219 in Automotive ( See Top 100 in Automotive ) #719 in Automotive Sealants #7,344 in Oils & Fluids |
| Brand | SYSTEMTHREE |
| Brand Name | SYSTEMTHREE |
| Color | White |
| Compatible Material | Fiberglass |
| Container Type | Pail |
| Customer Reviews | 4.6 out of 5 stars 523 Reviews |
| Full Cure Time | 48 hours |
| Global Trade Identification Number | 00646697300056 |
| Included Components | Thickener - 1 quart tub |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Weight | 3.2 ounces |
| Manufacturer | System Three Resins, Inc. |
| Material | Silica |
| Material Type | Silica |
| Model | 3105S16 |
| Number of Pieces | 1 |
| Other Special Features of the Product | High Strength, Non-Sagging, Smooth Consistency, Versatile for Different Fillers |
| Part Number | 3105S16 |
| Special Feature | High Strength, Non-Sagging, Smooth Consistency, Versatile for Different Fillers |
| Specific Uses For Product | Woodworking, Repair |
| UPC | 646697300056 |
| Unit Count | 32 Ounce |
| Viscosity Level | High |
| Volume | 1 quarts |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** SYSTEMTHREE
- **Specific Uses For Product:** Woodworking, Repair
- **Material:** Silica
- **Item Form:** Paste
- **Color:** White

## Images

![System Three Silica Thickener, 1 Qt Tub, White - Image 1](https://m.media-amazon.com/images/I/61XMcVXMdEL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Affordable and good.
*by T***R on March 7, 2025*

Use this with their microglass beads and it's much cheaper than most fillers. Sands easily if you mix it to peanut butter consistency. I used with WestSystems 105. Great fairing compound. Downside is that you have to mix two different powders which takes a few more seconds.

### ⭐⭐⭐⭐⭐ Great product
*by R***H on April 19, 2026*

This material works great for stiffening the epoxy resin. I used it to fill holes where a kicker was mounted through the transom and to fill holes on the vertical.

### ⭐⭐⭐⭐⭐ Does exactly what it's supposed to do, thicken up the resin.
*by D***Y on July 22, 2019*

I used it to thicken up finishing gelcoat when patching chips I got on the bottom and transom edges of my bass boat hull from floating onto sunken boulders while out fishing. Although some of the silica powder is clumpy in the container, as some reviewers have mentioned, it doesn't matter because you're going to mix it into the gelcoat resin anyway. Could not have done the patch repair without it, and would certainly buy it again.

## Frequently Bought Together

- System Three Silica Thickener, 1 Qt Tub, White
- TotalBoat-14409 Marine Gelcoat for Boat Building, Repair and Composite Coatings (White, Quart with Wax)
- TotalBoat-510822 High Performance Epoxy Kit, Crystal Clear Marine Grade Resin and Hardener for Woodworking, Fiberglass and Wood Boat Building and Repair (Quart, Medium)

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-09-13*