---
product_id: 267257759
title: "West System 205-B Fast Hardener, Epoxy, Liquid, Epoxy Hardener, Clear"
brand: "west system"
price: "€ 279.93"
currency: EUR
in_stock: true
reviews_count: 5
category: "West System"
url: https://www.desertcart.sk/products/267257759-west-system-205-b-fast-hardener-epoxy-liquid-epoxy-hardener
store_origin: SK
region: Slovakia
---

# Waterproof & water resistant Fast 24-hour full cure Effective at low temps West System 205-B Fast Hardener, Epoxy, Liquid, Epoxy Hardener, Clear

**Brand:** west system
**Price:** € 279.93
**Availability:** ✅ In Stock

## Summary

> ⚓ Fast, tough, and waterproof—epoxy that keeps you ahead of the tide.

## Quick Answers

- **What is this?** West System 205-B Fast Hardener, Epoxy, Liquid, Epoxy Hardener, Clear by west system
- **How much does it cost?** € 279.93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/267257759-west-system-205-b-fast-hardener-epoxy-liquid-epoxy-hardener)

## 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

- • **Cold-Weather Ready:** Formulated to perform flawlessly even in lower temperatures.
- • **Rapid Strength Build:** Achieve full cure in just 24 hours—no more waiting around.
- • **Precision Mixing Ratio:** Optimized 5:1 resin-to-hardener ratio ensures consistent, reliable results every time.
- • **Versatile Bonding Power:** Pairs perfectly with WEST SYSTEM 105 Resin for superior adhesion and gap filling.
- • **Ultra-Tough Waterproof Seal:** Creates a durable, water-resistant barrier ideal for marine and tile repairs.

## Overview

WEST SYSTEM 205-B Fast Hardener is a medium-viscosity epoxy curing agent designed for rapid curing and excellent bonding, especially in cooler conditions. When mixed with WEST SYSTEM 105 Resin at a 5:1 ratio, it delivers a durable, waterproof finish ideal for boating, tile repair, and other demanding applications. Trusted by professionals and hobbyists alike, it cures fully in 24 hours and offers a reliable, gap-filling adhesive solution.

## Description

Highly trusted by boat-builders, WEST SYSTEM Epoxy is ideal for use as an ultra-tough waterproof coating, a high-strength, gap-filling adhesive or an easily sanded surface filler. The Resin works in conjunction with a variety of WEST SYSTEM Hardeners, Fillers and Pumps for a wide range of applications.

Review: West System Products are wonderful for both hobbyists and professionals. Convent package sizes make it easy to buy the right amount without waste. 205-B is great for cold weather or fast cure needs.
Review: Timely delivery of product is always desirable. West systems offers among the best performance for an adhesive and structural epoxy. Not to be confused with a slow cure or high depth of pour product.

## Features

- 205 Fast Hardener is a medium-viscosity epoxy curing agent. It is useful in a majority of bonding situations, and at lower temperatures.
- Mix it with WEST SYSTEM 105 Resin in a five-part resin to one-part hardener ratio.
- The combination of 105 Resin/205 Fast Hardener has excellent bonding and coating properties.
- 205 Fast Hardener is not intended for clear coating.
- Pair with WEST SYSTEM 105 Epoxy Resin
- Sport type: Boating

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002NY6SW |
| ASIN  | B0002NY6SW |
| Best Sellers Rank | #66,415 in Sporting Goods ( See Top 100 in Sporting Goods ) #87 in Boat Maintenance Supplies |
| Brand Name | West System |
| Color | Clear |
| Compatible Material | Resin |
| Container Type | Bottle |
| Customer Reviews | 4.8 4.8 out of 5 stars (212) |
| Customer reviews | 4.8 4.8 out of 5 stars (212) |
| Date First Available  | 16 August 2012 |
| Department  | Epoxy |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00811343010577 |
| Included Components | Epoxy |
| Is Discontinued By Manufacturer  | No |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | Epoxy |
| Item Weight | 2.2 Pounds |
| Item model number  | 205-B |
| Manufacturer | WEST SYSTEM |
| Manufacturer  | WEST SYSTEM |
| Material Type | Epoxy Resin |
| Model | 205-B |
| Other Special Features of the Product | Waterproof |
| Product Dimensions  | 6.1 x 11.56 x 18.54 cm; 997.9 g |
| Specific Uses For Product | Tile Repair |
| UPC | 811343010577 780333707172 799916783816 |
| Viscosity | medium |
| Volume | 0.86 Quarts |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** West System
- **Item Form:** Liquid
- **Material:** Epoxy
- **Special Feature:** Waterproof
- **Specific Uses For Product:** Tile Repair

## Images

![West System 205-B Fast Hardener, Epoxy, Liquid, Epoxy Hardener, Clear - Image 1](https://m.media-amazon.com/images/I/81Cx3Y5mmYL.jpg)
![West System 205-B Fast Hardener, Epoxy, Liquid, Epoxy Hardener, Clear - Image 2](https://m.media-amazon.com/images/I/81ZnL4CXwaL.jpg)

## Questions & Answers

**Q: how much hardner do i need for 4.35 gallons?**
A: The resin and hardener come as a 5 to 1 ratio. The resisnt exactly a gallon, the hardener in I think a 25 oz can goes with a “gallon” of resin so you would need to get five of these 25 oz cans of hardener and you’ll have 2/3 of a can of hardener left when you’ve used up your 4.35 gallons of resin.

**Q: I have used Envirotex Lite to coat tiles and it is crystal clear but SO long to cure. Question is if this is crystal clear? And how long to cure?**
A: You have to use 207 hardner and 207 resin. Go to West system site and read about clear finish.

**Q: Do these containers come full ? appeared to have channellock marks on lid channel and there was hardener on inner lid. Missing 2 inches of product.**
A: It doesn't matter. It was obviously opened by someone. Just return it and get another one or a refund.

**Q: My set of resin and hardener came today, but the hardener is brownish/redish in color when I pump it out.  Is that correct or should I return it?**
A: My hardener was slightly brownish when mixing with the resin, but after mixing it would clear up, and it would harden clear as well.  If it is very pronounced, you may have a problem, but if it is just a tint that goes away when you mix, that seems to be normal.  You may want to do a test on some scrap material to confirm.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***. on 24 November 2025*

West System Products are wonderful for both hobbyists and professionals. Convent package sizes make it easy to buy the right amount without waste. 205-B is great for cold weather or fast cure needs.

### ⭐⭐⭐⭐⭐ Review
*by J***. on 6 June 2024*

Timely delivery of product is always desirable. West systems offers among the best performance for an adhesive and structural epoxy. Not to be confused with a slow cure or high depth of pour product.

### ⭐⭐⭐⭐⭐ Review
*by D***T on 1 March 2025*

Outstanding Application every time!

## Frequently Bought Together

- West System 205-B Fast Hardener, Epoxy, Liquid, Epoxy Hardener, Clear
- Polycell Multi-Purpose Polyfilla Ready Mixed, 1 Kg

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-02*