--- product_id: 49615948 title: "WW500 Wondarweld, 500 ml" price: "$130.00" currency: USD in_stock: true reviews_count: 8 url: https://www.desertcart.ec/products/49615948-ww500-wondarweld-500-ml store_origin: EC region: Ecuador --- # Engine-safe formula Quick leak repair Heavy-duty sealant strength WW500 Wondarweld, 500 ml **Price:** $130.00 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal the deal, skip the repair drama! ## Quick Answers - **What is this?** WW500 Wondarweld, 500 ml - **How much does it cost?** $130.00 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/49615948-ww500-wondarweld-500-ml) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rapid Road-Ready Fix:** Get back on the road quickly with a fast-acting formula trusted by thousands. - • **Compact & Easy to Use:** 500 ml bottle designed for convenient application and storage. - • **Engine-Safe & Reliable:** Formulated specifically for engine coolant systems to ensure lasting performance. - • **Top-Rated Leak Solution:** 4.4-star rating from 128+ users proves its effectiveness and reliability. - • **Heavy-Duty Sealant Power:** Permanently seals small cracks and holes in engine components, saving costly repairs. ## Overview Holts WW500 Wondarweld is a premium 500 ml heavy-duty coolant leak repair solution designed to permanently seal small cracks and holes in engine components. Trusted by users for its quick, reliable performance, it helps avoid costly repairs and downtime, making it an essential tool for any vehicle owner. ## Description Permanently seal small cracks and holes in engine components with this heavy-duty coolant leak repair. Avoid costly repairs and get back on the road quickly. Review: Great product. - Worked as claimed so definitely worth the cash and the 5* rating given. Review: good product - does exactly what it says it does ## Features - Causes serious eye irritation. - Causes skin irritation. - Premium Product ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00BJDTODQ | | Best Sellers Rank | 16,938 in Automotive ( See Top 100 in Automotive ) 172 in Fillers, Adhesives & Sealants | | Brand | Holts | | Customer Reviews | 4.4 4.4 out of 5 stars (128) | | Date First Available | 6 Feb. 2013 | | Item Weight | 770 g | | Item model number | WW500 | | Manufacturer | Holts | | Manufacturer part number | WW500 | | Model | WW500 | | Package Dimensions | 17.3 x 9 x 4.5 cm; 770 g | ## Images ![WW500 Wondarweld, 500 ml - Image 1](https://m.media-amazon.com/images/I/81Dn9+7fAOL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: I used wondarweld. I have to drain cooling system?I dont want to add coolant I add just water ?if wondarweld stay in system causing damage in car?** A: You should follow the manufacturers instructions fully, as per the label on the bottle. It is essential to add coolant after treatment as this will help prevent your radiator overheating but also to prevent damage caused to engine/cooling systems at sub-zero temperatures. Water alone will freeze at zero celsius and if you do not use de-ionised or distilled water in your radiator, you are likely to introduce lime-scale and other impurities ito your cooling sytem. Coolant will also stop corrosion internally. **Q: I used wondarweld. I have to drain cooling system?I dont want to add coolant I add just water ?if wondarweld stay in system causing damage in car?** A: Drain and totally flush cooling system before using wondarweld. Wondarweld can stay in system afterwards. Did a brilliant job on my car. **Q: Will this work on a diesel engine that's pressuring the coolant system and putting the coolant out of the tank** A: It could not work or it could completely cure it. ..... or anything inbetween. If you do use it , make sure that you flush the coolant out first very thoroughly. It worked for me. **Q: I used Wondarweld twice, but it has not repaired the cracked block. Should the concentration increased for larger amounts of water in the system?** A: I tried various quick fix products to seal a crack in the head in my old car but none have completely stopped water dripping out. At best they have slowed the water loss, I followed the instructions to the letter. I am not sure increasing the concentration would help and may block other passageways. I am going to try and seal the crack from the outside, but then I do not have a pressurized cooling system. Good luck. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product. *by M***R on 16 January 2026* Worked as claimed so definitely worth the cash and the 5* rating given. ### ⭐⭐⭐⭐⭐ good product *by J***. on 7 April 2026* does exactly what it says it does ### ⭐⭐⭐⭐ Good *by A***A on 12 October 2021* Easy to use ## Frequently Bought Together - HOLTS Wondarweld - 500ml - WW500 - Holts Sealit Leak Repair 250ml, (Packing May Vary) - Holts HAFR0006B Antifreeze Coolant for Car VW-Audi-Seat-Skoda G12, G12+, G12++, G13, G12 EVO 10-year 300k mile long life protection to -30°C, Pink, 5 Litre --- ## 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.ec/products/49615948-ww500-wondarweld-500-ml](https://www.desertcart.ec/products/49615948-ww500-wondarweld-500-ml) --- *Product available on Desertcart Ecuador* *Store origin: EC* *Last updated: 2026-04-22*