---
product_id: 267257759
title: "West System 205-B Fast Hardener, Epoxy, Liquid, Epoxy Hardener, Clear"
brand: "west system"
price: "R$2659"
currency: BRL
in_stock: false
reviews_count: 5
category: "West System"
url: https://www.desertcart.com.br/products/267257759-west-system-205-b-fast-hardener-epoxy-liquid-epoxy-hardener
store_origin: BR
region: Brazil
---

# Fast curing at low temps Perfect 5:1 resin-to-hardener ratio Ideal for marine bonding West System 205-B Fast Hardener, Epoxy, Liquid, Epoxy Hardener, Clear

**Brand:** west system
**Price:** R$2659
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Speed meets strength — epoxy that works as hard as you do!

## Quick Answers

- **What is this?** West System 205-B Fast Hardener, Epoxy, Liquid, Epoxy Hardener, Clear by west system
- **How much does it cost?** R$2659 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/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

- • **Precision Mix Ratio:** Optimized 5:1 resin-to-hardener formula ensures consistent, reliable results every time.
- • **Waste-Free Packaging:** Smart sizing means you buy just what you need, reducing waste and saving money.
- • **Marine-Grade Strength:** Trusted by boat-builders for ultra-tough, waterproof bonds that withstand the elements.
- • **Versatile Application:** Perfect for bonding, coating, and gap-filling—your all-in-one epoxy solution.
- • **Rapid Cure, No Downtime:** Get your projects moving faster with a hardener designed to perform even in chilly conditions.

## Overview

WEST SYSTEM 205-B Fast Hardener is a medium-viscosity epoxy curing agent designed for rapid curing at lower temperatures. When mixed with WEST SYSTEM 105 Resin at a precise 5:1 ratio, it delivers exceptional bonding and coating performance, especially favored in marine applications. Ideal for professionals and hobbyists alike, it offers a tough, waterproof finish and gap-filling capabilities, packaged in convenient sizes to minimize waste.

## 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 Great!
Review: Worth the expense!

## 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 |
| Best Sellers Rank | #28,543 in Sporting Goods ( See Top 100 in Sporting Goods ) #30 in Boat Maintenance Supplies |
| Customer reviews | 4.8 4.8 out of 5 stars (211) |
| Date First Available  | 16 August 2012 |
| Department  | Epoxy |
| Is Discontinued By Manufacturer  | No |
| Item model number  | 205-B |
| Manufacturer  | WEST SYSTEM |
| Product Dimensions  | 6.1 x 11.56 x 18.54 cm; 997.9 g |

## 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/41Ls73hwKlL.jpg)
![West System 205-B Fast Hardener, Epoxy, Liquid, Epoxy Hardener, Clear - Image 2](https://m.media-amazon.com/images/I/5106EITkz4L.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

### ⭐⭐⭐⭐⭐ West System Products are Great!
*by J***. on 24 November 2025*



### ⭐⭐⭐⭐⭐ Worth the expense!
*by D***T on 1 March 2025*



### ⭐⭐⭐⭐⭐ Delivery ahead of schedule
*by J***. on 6 June 2024*



## 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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**Shop now:** [https://www.desertcart.com.br/products/267257759-west-system-205-b-fast-hardener-epoxy-liquid-epoxy-hardener](https://www.desertcart.com.br/products/267257759-west-system-205-b-fast-hardener-epoxy-liquid-epoxy-hardener)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-03*