--- product_id: 267257759 title: "West System 205-B Fast Hardener, Epoxy, Liquid, Epoxy Hardener, Clear" brand: "west system" price: "€ 172.21" currency: EUR in_stock: true category: "West System" url: https://www.desertcart.pt/products/267257759-west-system-205-b-fast-hardener-epoxy-liquid-epoxy-hardener store_origin: PT region: Portugal --- # 24-hour full cure time Fast curing at low temps Waterproof & gap-filling West System 205-B Fast Hardener, Epoxy, Liquid, Epoxy Hardener, Clear **Brand:** west system **Price:** € 172.21 **Availability:** ✅ In Stock ## Summary > ⚓ Fast, flawless, and waterproof – the epoxy pros swear by! ## Quick Answers - **What is this?** West System 205-B Fast Hardener, Epoxy, Liquid, Epoxy Hardener, Clear by west system - **How much does it cost?** € 172.21 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/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 - • **Perfect Mix Ratio:** Optimized 5:1 resin-to-hardener ratio for consistent, reliable results every time. - • **Sanded to Perfection:** Easily sands smooth for flawless finishes that impress and last. - • **Versatile Application:** Ideal for bonding, coating, and filling gaps—your all-in-one epoxy solution. - • **Rapid Strength, No Wait:** Cures quickly even in cooler conditions, so your projects stay on schedule. - • **Ultimate Waterproof Bond:** Delivers a tough, water-resistant seal trusted by professional boat-builders. ## Overview West System 205-B Fast Hardener is a medium-viscosity epoxy curing agent designed for superior bonding and coating, especially in lower temperatures. When mixed with WEST SYSTEM 105 Resin at a 5:1 ratio, it creates a durable, waterproof, gap-filling adhesive favored by boat-builders. It fully cures in 24 hours and sands easily for a smooth finish, making it a versatile choice for professional-grade repairs and coatings. ## 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. ## 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 | #49,321 in Sporting Goods ( See Top 100 in Sporting Goods ) #61 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 (218) | | Customer reviews | 4.8 4.8 out of 5 stars (218) | | 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 | 998 g | | Item model number | 205-B | | Manufacturer | WEST SYSTEM | | Manufacturer | WEST SYSTEM | | Material Type | Epoxy | | Model | 205-B | | Number of Pieces | 1 | | Other Special Features of the Product | Waterproof | | Part Number | 205B | | 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 Level | 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/41Ls73hwKlL.jpg) ![West System 205-B Fast Hardener, Epoxy, Liquid, Epoxy Hardener, Clear - Image 2](https://m.media-amazon.com/images/I/5106EITkz4L.jpg) ![West System 205-B Fast Hardener, Epoxy, Liquid, Epoxy Hardener, Clear - Image 3](https://m.media-amazon.com/images/I/81Cx3Y5mmYL.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. ## Frequently Bought Together - West System 205-B Fast Hardener, Epoxy, Liquid, Epoxy Hardener, Clear - Polycell Multi-Purpose Polyfilla Ready Mixed, 1 Kg --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/267257759-west-system-205-b-fast-hardener-epoxy-liquid-epoxy-hardener](https://www.desertcart.pt/products/267257759-west-system-205-b-fast-hardener-epoxy-liquid-epoxy-hardener) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-16*