---
product_id: 26148090
title: "System Three RotFix Penetrating Epoxy Sealer, 1.5 Quarts"
brand: "systemthree"
price: "€ 165.00"
currency: EUR
in_stock: true
reviews_count: 8
category: "Systemthree"
url: https://www.desertcart.hr/products/26148090-system-three-rotfix-penetrating-epoxy-sealer-1-5-quarts
store_origin: HR
region: Croatia
---

# Solvent-free & low-odor for eco-conscious use Ultra-low viscosity for deep wood penetration Sands smooth in just 24 hours at 70°F System Three RotFix Penetrating Epoxy Sealer, 1.5 Quarts

**Brand:** systemthree
**Price:** € 165.00
**Availability:** ✅ In Stock

## Summary

> 🛠️ Restore, Reinforce, Repeat — The Pro’s Choice for Wood Revival!

## Quick Answers

- **What is this?** System Three RotFix Penetrating Epoxy Sealer, 1.5 Quarts by systemthree
- **How much does it cost?** € 165.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/26148090-system-three-rotfix-penetrating-epoxy-sealer-1-5-quarts)

## 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

- • **Fast Sanding Cure:** Ready to sand with 150 grit in only 24 hours—speed up your restoration projects.
- • **Deep Penetration Power:** Ultra-low viscosity formula seeps into punky wood for unmatched consolidation.
- • **Versatile Wood Hardener:** Use as a stand-alone consolidant or primer base to firm up soft wood before finishing.
- • **Eco-Friendly & User Safe:** Solvent-free and low-odor, making your workspace healthier and more pleasant.
- • **Trusted Log Cabin Savior:** Highly rated by pros for restoring decades-old wood with lasting strength.

## Overview

System Three RotFix Penetrating Epoxy Sealer is a premium, solvent-free wood hardener designed to deeply penetrate and consolidate punky wood. With ultra-low viscosity and a fast 24-hour sanding cure time, it’s ideal for professional-grade wood repair and restoration projects. Its low-odor formula ensures a safer, more pleasant application experience, making it a trusted solution for long-lasting wood reinforcement.

## Description

System Three RotFix Penetrating Epoxy Sealer, 1.5 Quarts: desertcart.com: Industrial & Scientific

Review: Best wood hardener ever ! - This is the best word hardener I've ever used!
Review: This is a log cabin savior. - System Three End Rot System is awesome, found log rot in a few spots on my 34 yr old engineered log cabin. After intense research I found their product to be strong, easy to apply and the only thing I trust on my house.

## Features

- Premium Epoxy: RotFix is an ultra-low viscosity, solvent-free, low-odor wood epoxy that penetrates deeply into soft, punky wood substrates
- Easy To Apply: Brush our penetrating epoxy over the repair area; Some wood substrates are highly porous and will absorb the RotFix rapidly
- Versatile Application: Our epoxy resin hardens punky wood, and it can also be used as a stand-alone wood consolidant product for firming up punky wood prior to primer or paint application
- Curing: At 70°F our wood repair epoxy can be sanded with 150 grit sandpaper in 24 hours; Make sure that RotFix is completely deglossed before applying primer
- Tips and Tricks: RotFix epoxy wood sealer does not kill rot fungus or keep it from returning; For long-term protection from rot and decay, first use EndRot Borate Powder

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00UVH1PFG |
| Best Sellers Rank | #237,976 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #256 in Industrial Coatings |
| Brand | SYSTEMTHREE |
| Color | Brown |
| Date First Available | March 18, 2015 |
| Full Cure Time | 8 Hours |
| Global Trade Identification Number | 00646697902021 |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Volume | 1.5 Quarts |
| Item Weight | 1 pounds |
| Item model number | 1500K42 |
| Manufacturer | System Three Resins, Inc. |
| Material | Epoxy Resin |
| Package Dimensions | 9.25 x 5.75 x 3.5 inches |
| Package Information | Bottle |
| Special Feature | Solvent-free, low-odor, easy to apply, 2:1 mix ratio (volume), and 100:43 mix ratio (weight) |
| Specific Uses For Product | Woodworking, Repair |
| UPC | 646697902021 |
| Unit Count | 48.0 Fluid Ounces |
| Viscosity | Low |
| Viscosity Level | Low |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** SYSTEMTHREE
- **Item Form:** Liquid
- **Material:** Epoxy Resin
- **Special Feature:** Solvent-free, low-odor, easy to apply, 2:1 mix ratio (volume), and 100:43 mix ratio (weight)
- **Specific Uses For Product:** Woodworking, Repair

## Images

![System Three RotFix Penetrating Epoxy Sealer, 1.5 Quarts - Image 1](https://m.media-amazon.com/images/I/615uySHIg7L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best wood hardener ever !
*by S***O on June 4, 2025*

This is the best word hardener I've ever used!

### ⭐⭐⭐⭐⭐ This is a log cabin savior.
*by R***S on September 5, 2024*

System Three End Rot System is awesome, found log rot in a few spots on my 34 yr old engineered log cabin. After intense research I found their product to be strong, easy to apply and the only thing I trust on my house.

### ⭐⭐⭐⭐⭐ Great for repairing rotted wood. Excellent wetability and slow cure.
*by M***. on July 18, 2016*

I used this to repair some delaminations on a fifth wheel camper. Water intrusion had caused the luan plywood to fall apart and the fiberglass skin was coming off. I mixed this up and put about 100CCs per sq ft and then braced the fiberglass back in place with 2x4s and plywood. After curing it was as good as new. I also used this on part of the subfloor that had water damage and light rot. It is probably stronger than before. I recommend mixing this in a wide paper bowl. I tried mixing 1.5 oz in a cup and it got hot and cured way too fast. I used 16 gauge syringes to inject this in the desired area and it flowed through the needle fine. Once spread out over an area it cures fairly slowly allowing good penetration into rot. I will be buying this again to keep for future repairs. Very happy.

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**Shop now:** [https://www.desertcart.hr/products/26148090-system-three-rotfix-penetrating-epoxy-sealer-1-5-quarts](https://www.desertcart.hr/products/26148090-system-three-rotfix-penetrating-epoxy-sealer-1-5-quarts)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-21*