--- product_id: 47889650 title: "Wet Rot Wood Hardener 500ml" brand: "ronseal" price: "€ 40.62" currency: EUR in_stock: true category: "Ronseal" url: https://www.desertcart.fr/products/47889650-wet-rot-wood-hardener-500ml store_origin: FR region: France --- # Dries in 2 hours Effective on wet rot, inside & outside Sets rock hard for durable repair Wet Rot Wood Hardener 500ml **Brand:** ronseal **Price:** € 40.62 **Availability:** ✅ In Stock ## Summary > 🛠️ Repair smarter, not harder—stop wet rot in its tracks! ## Quick Answers - **What is this?** Wet Rot Wood Hardener 500ml by ronseal - **How much does it cost?** € 40.62 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/47889650-wet-rot-wood-hardener-500ml) ## Best For - ronseal enthusiasts ## Why This Product - Trusted ronseal brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rock-Solid Strength:** Hardens rotten wood to create a tough, repair-ready base - • **User-Friendly Design:** Ergonomic tin and easy brush application for hassle-free use - • **Versatile Application:** Perfect for doors, windows, frames—indoors or outdoors - • **Deep Penetration Power:** Soaks deep into wood for lasting protection against wet rot - • **Fast-Track Restoration:** Dries in just 2 hours so you can move on quickly ## Overview Ronseal Wet Rot Wood Hardener 500ml is a quick-drying, clear wood treatment that penetrates and hardens rotten wood, providing a durable base for repairs. Suitable for both interior and exterior use on doors, windows, and frames, it dries in 2 hours and covers up to 2 square meters per tin, making it an essential tool for professional-grade wood restoration. ## Description From the manufacturer Ronseal Wet Rot Wood Hardener 500ml Stop wet rot spreading and make your wood hard again so it can be easily repaired. Suitable for doors, windows and frames. Can be used inside or outside. Don’t replace rotten wood, repair it Dries in two hours Sets rock hard Soaks in deep and strengthens rotten wood Provides a strong base to begin filling cracks and holes How to strengthen wet rot wood Before you start Wear protective gloves to avoid getting hardener on your skin. Open your doors and windows for added ventilation. Remove loose or crumbling wood and make sure the area is dry. For the best repairs, drill small holes into the wood so hardener can get in deeper. Application Give the tin a thorough shake. Pour some of the hardener out into the plastic lid. Apply it with a paint brush. Make sure you get enough on so that it completely soaks into the rotten wood. Leave it to dry for two hours. Scrub with a wire brush to get rid of any excess hardener. ## Features - Causes serious eye irritation. - Highly flammable liquid and vapour. - May cause drowsiness or dizziness. - Repeated exposure may cause skin dryness or cracking. - The Ronseal Wet Rot Wood Hardener comes in the following - Ergonomic design - Easy to use ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001GU2G6Y | | Base Material | Wood | | Best Sellers Rank | 1,269 in DIY & Tools ( See Top 100 in DIY & Tools ) 15 in Wood Fill 121 in Hand Tools (DIY & Tools) | | Brand | Ronseal | | Coating Description | Clear, binding, quick-drying coating for wood surfaces | | Colour | Red | | Compatible Material | Wood | | Container Type | Tin | | Coverage | covers up to 2 sq. meters per 500ml | | Customer Reviews | 4.6 4.6 out of 5 stars (1,871) | | Finish | Matte | | Global Trade Identification Number | 05010214538713 | | Included Components | 1 x Ronseal Wet Rot Wood Hardener 500ml | | Item Dimensions | 10 x 4 x 15 centimetres | | Item Weight | 114 Grams | | Liquid Volume | 500 Millilitres | | Manufacturer | Ronseal | | Material | Wood | | Model Name | 32042 | | Model Number | 32042 | | Number of Items | 3 | | Number of Packs | 1 | | Part Number | 32042 | | Recommended Uses For Product | Interior and Exterior Wood | | Size | 500ml | | Special Features | Quick Drying | | Surface Recommendation | Wood | | UPC | 790295574477 | | Unit Count | 500.0 millilitre | ## Product Details - **Brand:** Ronseal - **Colour:** Red - **Material:** Wood - **Model name:** 32042 - **Surface recommendation:** Wood ## Images ![Wet Rot Wood Hardener 500ml - Image 1](https://m.media-amazon.com/images/I/41Eep8BtCFL.jpg) ## Questions & Answers **Q: An outdoor painted sill has some areas of decay. I can gauge out the decay. Shall I treat the entire sill with this product?over the paint?** A: Make sure you gouge out all the decay, and bear in mind that even if the exterior of the sill is good, underneath / inside might be rotten. (If in doubt, take more out rather than less.) Sand off surrounding areas of paint using coarse sandpaper. Drill a few very small holes (or gouge out slots) which will help the hardener penetrate. Then let everything air-dry for a couple of days. Only then apply the hardener (wear latex gloves and don't get it on anything, as it's vicious stuff). Best let it dry for 72 hours. I then always apply more and leave it for another 3 days. A pain to have to wait, but it works. Make sure you then use the super-tough two part Ronseal filler (green tub), not normal wood filler (purple tub or tube): if you use the latter, and if there's the slightest bit of rot left in the wood, the filler will never harden. The two-part stuff is extremely good but you need to work quickly as it cures very fast! **Q: can you paint over Ronseal Wet Wood Hardener** A: My experience is no. I applied the hardener to all my window cill, then filled some small areas with the Ronseal epoxy filler, sanded and painted with oil based primer/undercoat then with oil based top coat. One year later the paint was peeling over the areas not filled but not peeling the areas filled. The hardener was beneath the epoxy filler so wasn't in contact with the paint. The rest of the window I painted the same way but without the hardener and that held well. **Q: Can this be used on rotten floor board? Under the bath which was caused by a leak , I am trying to figure out the best way to prevent and repair .** A: I used it on rotten wood that clad the overside of the dashboard on my motorhome. The condensation from the windscreen had accumulated over 23 years! The liquid worked perfectly. When dry, I coated the wood in yacht varnish, and that worked as well. Maybe you should cover under your bath in thin marine ply to finish. **Q: I have a solid wood worktop around my sink that has started to blacken, would this and the natural wood filler be the right choice to repair?** A: The wood blackening is due to Mold. If this wood is also soft (wet rot) it will need removing down to sound wood. Using the wood hardener will harden the sound wood, then the filler can be applied. However, the visual effect will not be good and being a wet environment, it is likely the mold may eventually come back. ## Frequently Bought Together - Ronseal Wet Rot Wood Hardener 500ml - Ronseal 35304 High Performance Wood Filler - Natural 550g --- ## 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.fr/products/47889650-wet-rot-wood-hardener-500ml](https://www.desertcart.fr/products/47889650-wet-rot-wood-hardener-500ml) --- *Product available on Desertcart France* *Store origin: FR* *Last updated: 2026-10-01*