--- product_id: 458862882 title: "FAST HARDENER #205, .86 QUART by WEST SYSTEM" brand: "west system" price: "£402.54" currency: GBP in_stock: true reviews_count: 5 category: "West System" url: https://www.desertcart.co.uk/products/458862882-fast-hardener-205-86-quart-by-west-system store_origin: GB region: United Kingdom --- # Fast curing in cold weather Waterproof epoxy resin Compact .86 quart size FAST HARDENER #205, .86 QUART by WEST SYSTEM **Brand:** west system **Price:** £402.54 **Availability:** ✅ In Stock ## Summary > ⚡ Speed meets strength: Fast Harden your projects with confidence! ## Quick Answers - **What is this?** FAST HARDENER #205, .86 QUART by WEST SYSTEM by west system - **How much does it cost?** £402.54 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/458862882-fast-hardener-205-86-quart-by-west-system) ## 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 - • **Rapid Cure Power:** Get projects done faster with fast-drying #205 hardener ⚡ - • **Precision Packaging:** Perfect .86 quart size to minimize waste and maximize efficiency 📏 - • **Waterproof Durability:** Seals and protects with a waterproof epoxy formula 💧 - • **Trusted by Pros & Hobbyists:** Highly rated (4.8⭐) for superior adhesive strength and versatility - • **Weather-Resistant Performance:** Reliable curing even in cold conditions ❄️ ## Overview WEST SYSTEM FAST HARDENER #205 is a fast-curing, waterproof epoxy resin designed for cold weather and quick turnaround projects. Packaged in a convenient .86 quart bottle, it offers professional-grade adhesive strength favored by both hobbyists and experts, ensuring efficient, durable, and reliable bonding every time. ## Description Fast Drying Review: West System Products are Great! - 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: Delivery ahead of schedule - 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 - Fast Drying ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002NY6SW | | Brand | WEST SYSTEM | | Brand Name | WEST SYSTEM | | Colour | clear | | Container Type | Bottle | | Customer Reviews | 4.8 out of 5 stars 217 Reviews | | Global Trade Identification Number | 00811343010577 | | Item Form | Liquid | | Item Package Quantity | 1 | | Item Weight | 998 g | | Manufacturer Part Number | 205B | | Material | Epoxy Resin | | Material Type | Epoxy Resin | | Model | 205-B | | Number of Pieces | 1 | | Other Special Features of the Product | Fast Drying | | Special Feature | Fast Drying | | Specific Uses For Product | Marine Bonding & Laminating, General Purpose Bonding & Repair | | UPC | 811343010577 780333707172 799916783816 | | Volume | 0.86 Quarts | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** WEST SYSTEM - **Colour:** clear - **Item Form:** Liquid - **Material:** Epoxy Resin - **Special Feature:** Fast Drying ## Images ![FAST HARDENER #205, .86 QUART by WEST SYSTEM - Image 1](https://m.media-amazon.com/images/I/81Cx3Y5mmYL.jpg) ![FAST HARDENER #205, .86 QUART by WEST SYSTEM - 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 ### ⭐⭐⭐⭐⭐ West System Products are Great! *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. ### ⭐⭐⭐⭐⭐ Delivery ahead of schedule *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. ### ⭐⭐⭐⭐⭐ Worth the expense! *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 --- ## 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.co.uk/products/458862882-fast-hardener-205-86-quart-by-west-system](https://www.desertcart.co.uk/products/458862882-fast-hardener-205-86-quart-by-west-system) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-24*