--- product_id: 690756444 title: "RYDLYME Marine Biodegradable Descaler - 1 Gallon" brand: "rydlyme" price: "€ 224.89" currency: EUR in_stock: true reviews_count: 6 url: https://www.desertcart.pt/products/690756444-rydlyme-marine-biodegradable-descaler-1-gallon store_origin: PT region: Portugal --- # Quick 2-4 hour circulation Dissolves scale fast 100% biodegradable formula RYDLYME Marine Biodegradable Descaler - 1 Gallon **Brand:** rydlyme **Price:** € 224.89 **Availability:** ✅ In Stock ## Summary > 🌊 Clean smarter, sail faster—ditch the scale, not the adventure! ## Quick Answers - **What is this?** RYDLYME Marine Biodegradable Descaler - 1 Gallon by rydlyme - **How much does it cost?** € 224.89 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/690756444-rydlyme-marine-biodegradable-descaler-1-gallon) ## Best For - rydlyme enthusiasts ## Why This Product - Trusted rydlyme brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Customizable Strength:** Dilute 1:1 for heavy-duty descaling or up to 1:3 for routine upkeep—flexible cleaning on your terms. - • **Time-Smart Circulation:** Small units cleaned in just 2 hours, large units in 4—get back on the water faster than ever. - • **Eco-Friendly Powerhouse:** Concentrated, biodegradable, and non-toxic—clean your engine without compromising the planet. - • **Rapid Scale Annihilation:** Effortlessly dissolves calcium, lime, rust, barnacles, and mussels for peak marine performance. - • **Versatile Marine Maintenance:** Perfect for cooling systems, heat exchangers, condensers, and more—one solution for all your marine fouling woes. ## Overview RYDLYME Marine Biodegradable Descaler is a concentrated, eco-friendly liquid solution designed to rapidly dissolve tough marine deposits like calcium, lime, rust, barnacles, and mussels. Safe for most metals except zinc and magnesium, it’s ideal for cooling systems, heat exchangers, and condensers. Dilutable for both heavy and routine cleaning, it works efficiently within 2 to 4 hours, helping marine professionals maintain optimal engine performance while protecting the environment. ## Description Product description This item contains (1) single gallon of RYDLYME Marine Biodegradable Marine Descaler. This product is to be diluted 1:1 with water and water only prior to use. For periodic maintenance cleaning, it may be diluted further to 1:3 with water. It is also available in case quantities of (4) single gallons. No ready-to-use item is manufactured. RYDLYME Marine works most effectively when circulated through an application such as a raw water cooling system, oil cooler, or A/C condenser in order to rapidly dissolve any unwanted marine fouling of water deposits. RYDLYME MARINE is safe on virtually any metal or material except for zinc and magnesium. Make sure to blank anodes or plan on replacing them after cleaning the cooling system on a marine engine. For complete instructions, SDS, and Specifications please review the available Technical Documents below or visit www.RYDLYMEMarine.com for further information and to contact a product specialist. Ingredients Proprietary ## Features - DISSOLVES CALCIUM, LIME, RUST, BARNACLES AND MUSSELS QUICKLY AND EFFECTIVELY! - CONCENTRATED, BIODEGRADABLE, NON-TOXIC, AND NON-CORROSIVE DESCALER! - APPLICATIONS INCLUDE: COOLING SYSTEMS, HEAT EXCHANGERS, CONDENSERS AND MORE! - DILUTE 1:1 WITH WATER FOR SEVERE SCALE OR UP TO 1:3 FOR PERIODIC MAINTENANCE - CIRCULATE JUST 2 HOURS FOR SMALL UNITS, 4 HOURS FOR LARGE UNITS! ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B07BYYYQLY | | Best Sellers Rank | 55,854 in Sports & Outdoors (See Top 100 in Sports & Outdoors) 30 in Boat Cleaners | | Brand Name | RYDLYME | | Contains Liquid Contents | Yes | | Customer Reviews | 4.7 4.7 out of 5 stars (248) 4.7 out of 5 stars | | Item Form | Liquid | | Item Volume | 1 Gallons | | Item Weight | 10 Pounds | | Manufacturer | Apex Engineering Products Corporation | | Material Features | Biodegradable | | Number Of Items | 1 | | Part Number | RYM01 | | Scent | Lime | | Size | 128 ml (Pack of 1) | | Special Features | Biodegradable, Concentrated, Descaler | | Specific Uses For Product | Engine, Metal | | Surface Recommendation | Metal | | Unit Count | 128.0 millilitre | | Upc | 635238000227 | ## Product Details - **Brand:** RYDLYME - **Item form:** Liquid - **Item volume:** 1 Gallons - **Material feature:** Biodegradable - **Number of items:** 1 - **Scent:** Lime - **Special feature:** Biodegradable, Concentrated, Descaler - **Specific uses for product:** Engine, Metal - **Surface recommendation:** Metal - **Unit count:** 128.0 millilitre ## Images ![RYDLYME Marine Biodegradable Descaler - 1 Gallon - Image 1](https://m.media-amazon.com/images/I/713Z7rQB5XL.jpg) ## Questions & Answers **Q: Safe to touh an aluminum boat trailer or stainless boat prop?** A: It's safe on aluminum outboard powerheads so I'm sure it's safe on a aluminum trailer and it won't harm the stainless prop at all **Q: Can it be used in indoor plumbing** A: Well depends on problem , drain clog no won’t work . But if you have a plumbing coil that has mineral scale from hard water yes it will work . Also any water system closed loop style will clean internal deposits like a heating coil on boilers . Good luck **Q: Is this safe for plastic and the pads of an evaporative cool?** A: This product is safe on plastic. For an industrial application, we would recommend using our Industrial Descaler, RYDLYME. https://www.apexengineeringproducts.com/product/rydlyme-biodegradable-descaler/ **Q: I used it to flush a hot water heater. Two weeks later the hot water smells while the cold water doesn't. How long does the smell / odor last?** A: Usually a smell from a water heater means the anode rod, has gone bad. You can flush it many times. It will only come back…. Change the rod. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Engine cooling descaler *by on Reviewed in the United Kingdom 5 September 2025* Brilliant. Descaled my motor boat diesel engine coolers. Saved £££££s avoiding strip downs of coolers. Inspected cooler internals with inspection camera after flush. Spotless & engine temps perfect. ### ⭐⭐⭐⭐⭐ Will buy Again !!!!!!!! *by on Reviewed in the United States 1 March 2026* These RYDLYME Marine Biodegradable Descaler (typically sold in 1-gallon or larger bottles) is hands-down one of the most effective and safest tools for keeping your boat's cooling system, heat exchangers, outboards, inboards, and other water-cooled components running cool and efficient!This stuff is a game-changer for dissolving stubborn scale, calcium buildup, rust, barnacles, mussels, sand, and mineral deposits that clog passages and cause overheating—without the harsh risks of traditional acids like muriatic. It's fully biodegradable, non-toxic, non-corrosive to most metals (when used as directed—note: remove zinc/magnesium anodes first to avoid pitting), and safe enough that you can handle it with bare hands. No nasty fumes or gloves required for basic use, and it's eco-friendly for marine environments.Application is straightforward: dilute per instructions (often 1:1 or as needed), circulate through the system (muffs for outboards, pump setup for inboards/AC), let it work (foaming/bubbling shows it's actively dissolving gunk), flush thoroughly, and you're done. Users report dramatic results—overheat issues vanish, "pee" streams flow strong again, cooling passages look factory-fresh, and engines run noticeably cooler. One flush pulled out cups of solid debris from heavily fouled systems, restoring performance like new. Many boaters make it an annual or bi-annual ritual, saying it's worth every penny compared to downtime, repairs, or less effective alternatives like vinegar or Salt-Away for heavy scale.The concentrated formula works fast (often in hours or overnight), cleans up to 12x quicker than some competitors, and holds up across seasons of salt, brackish, or hard water use without damaging seals, gaskets, hoses, or rubber components. Cleanup is easy—just flush with water—and it leaves no residue.If you're dealing with overheating, reduced water flow, or preventive maintenance on your marine engine or AC system, RYDLYME Marine delivers outstanding, reliable results that far exceed expectations. It's trusted by pros and DIYers alike for good reason—proven over decades, incredibly effective, and genuinely safe. Don't settle for cheaper hacks; this is the real deal for protecting your investment on the water. Highly, highly recommended—grab a gallon and thank yourself later! ### ⭐⭐⭐⭐⭐ Rydlyme is a must if you run in the marsh!!!!! *by on Reviewed in the United States 10 March 2026* This stuff works I had hardly any flow out of my 2007 Yamaha this cleared up a huge blockage and push it right out. Peeing like a brand new motor. Keep this stuff around ya if you run in the marsh trust me. 100% better then any other marine flush on the market. Highly recommend using 1 time a year. Keep them water passages clear for longer outboard life. Attached is what I could see this stuff pushing out. ## Frequently Bought Together - RYDLYME Marine Biodegradable Descaler - 1 Gallon - Superior Pump 91250 1800GPH Thermoplastic Submersible Utility Pump with 10-Foot Cord, 1/4 HP --- ## 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/690756444-rydlyme-marine-biodegradable-descaler-1-gallon](https://www.desertcart.pt/products/690756444-rydlyme-marine-biodegradable-descaler-1-gallon) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-08*