MDR MDR221 Rust Away Gel Stain Remover 16 oz

Mdr

<h3>MDR: Marine Development &amp; Research Since 1966</h3><p><strong>MDR</strong> — short for Marine Development &amp; Research — has been a trusted name in watercraft maintenance for decades. <a href="/7453-mdr">Founded in 1966</a>, MDR built its reputation by tackling the real-world challenges boaters face every season: water contamination in fuel systems, stubborn stains on fiberglass and vinyl, faded inflatable dinghies, and the relentless assault of marine moisture and mildew. What started as a focused line of chemical solutions has grown into a comprehensive catalog of more than 50 unique boating products, all engineered with the practical boater in mind.</p><p>One of MDR's most recognized areas of expertise is its <a href="/7453-mdr-fuel-additives-storage-kits-200439">Fuel Additives &amp; Storage Kits</a> lineup. Marine engines face unique fuel system stresses — from ethanol-blended gasoline attracting water to fuel degrading during months of off-season storage. MDR addresses these problems head-on with products like their Water Zorb series, which disperses and emulsifies water directly into the fuel so it safely burns through the engine, and their seasonal stabilizers that keep fuel fresh through winter layups. Notably, all MDR fuel additives are formulated without methanol or alcohol, making them gentler on engine components and fuel system seals.</p><p>Beyond the engine room, MDR's <a href="/7453-mdr-inflatable-boat-fender-cable-cleaners-200580">Inflatable Boat, Fender &amp; Cable Cleaners</a> reflect the brand's commitment to solving problems that general-purpose cleaners simply cannot. Their dedicated fender cleaner restores dock fenders to like-new condition, while their shore power cable cleaner and inflatable dinghy cleaner tackle the specific grime and oxidation patterns seen in marine environments. These are purpose-built solutions, not repurposed household products.</p><p>MDR has also made a strong commitment to environmental responsibility. The brand transitioned its paint products to <a href="/7453-mdr-specialty-coating-paints-200986">water-based Specialty Coatings &amp; Paints</a>, moving away from solvent-based formulas. The result is a line of non-flammable, low-odor, easy-cleanup coatings that are safer to apply in confined spaces like a boat's cabin — without sacrificing performance. Their inflatable boat top coating, for example, works on CSM (Hypalon), PVC, and vinyl surfaces, restoring color and flexibility to faded or weathered boats.</p><p>The brand's <a href="/7453-mdr-fuel-additive-12140">Fuel Additive</a> products extend into diesel applications as well, covering both gas and diesel engines with water removers, fuel conditioners, and spring &quot;wake-up&quot; treatments designed to revive fuel that has sat over a long storage period. And for interior surfaces, MDR's Vinyl, Leather &amp; Nylon Repair Kits bring the same targeted chemistry approach to fabric and upholstery care, with restorers formulated specifically for the UV-exposed, moisture-prone environments found aboard any vessel.</p><h3>Why Boaters Choose MDR</h3><ul style="list-style:disc"><li>Nearly 60 years of marine-specific product development</li><li>Alcohol- and methanol-free fuel additive formulas</li><li>Environmentally friendly, water-based paint and coating options</li><li>Biodegradable cleaning product formulas</li><li>Purpose-built solutions for inflatable boats, fenders, teak, and more</li><li>Trusted by both casual weekend boaters and serious offshore anglers</li></ul><p>Whether you're winterizing a runabout, refreshing a faded inflatable tender, or treating a diesel engine that's been sitting since last fall, MDR's catalog offers a targeted solution developed specifically for the demands of life on the water.</p>