After an hour, we observed no signs of negative effects on the copper and brass samples. However, the manufacturer cautions against using Naval Jelly on aluminum, chrome, stainless steel, cement, fiberglass, marble, plastic or painted surfaces. Despite its age, Naval Jelly proved its chemical makeup still capable of taking care of rust. After an hour, all of the surface rust had been eliminated and bare metal remained. Within the first fifteen minutes of application, the pink gel already began foaming and dissolving the light surface rust. Intimidating as its contents might make it sound, Naval Jelly can be simply rinsed away with water. Naval Jelly’s unassuming pink, viscous appearance hides its potent base chemical, phosphoric acid, along with a cocktail of other chemicals including 2-propanol, sulfuric acid, silicon dioxide, diiron trioxide, magnesium oxide and aluminum oxide. Today, Naval Jelly continues to be a popular rust removal solution. Naval Jelly (does not have anything to do with belly buttons) has been a rust-removing staple for well over 40 years and could be found in the toolboxes of most do-it-yourself handymen. Loctite Naval Jelly Pink Power Is Over 40 and Still Working Not only was it one of the quickest tested, it left a paintable zinc phosphate coating, as advertised. Once allowed to dry, the sample can be prepped, primered and painted.įast Etch lived up to its name. Some of the hazardous byproducts that could result from using Fast Etch include hydrogen chloride, chlorine, hydrogen selenide and organoselenides. This practice is not recommended by Eastwood, as they caution that extended exposure to Fast Etch could weaken the metal. For the sake of experimentation, the sample was left in the Fast Etch container for an extended period of time (48 hours), forming a thick ring of zinc phosphate at the fluid line. After thirty minutes, over 80 percent of the submersed area was covered with zinc phosphate and in just over an hour, complete coverage had been achieved. Within fifteen minutes, all of the oxidation was gone and the zinc phosphate coating began to form. As one might expect, Fast Etch worked pretty quickly once the sample had been placed in the Fast Etch bath. Each performed the task of surface rust removal with ease, but some also required extra steps for preparation and disposal.Įastwood Fast Etch Rust Removal and Paint Prep in OneĮastwood’s Fast Etch acid-based rust remover and metal prep is a phosphoric acid-based chemical designed to not only remove surface rust but also leave behind a rust inhibiting zinc phosphate coating on the treated surface. Potentially hazardous byproducts can almost always be expected when working with an acid, so be sure that your workspace is well ventilated and that proper safety precautions are taken when handling these chemicals.įor the acid chemical segment, we tested Eastwood’s Fast Etch Rust Remover, Loctite’s Naval Jelly and muriatic acid from Home Depot’s pool supply department. However, in the hands of the inexperienced, this chemical is an accident waiting to happen. Unlike the specialty solutions, the old-fashioned over-the-counter acid, muriatic acid (used for balancing the pH of your swimming pool) can also do the job. Some products even leave a prepped surface ready for fabrication or paint. Nonetheless, acid-based products developed specifically with rust removal in mind offer just the results that certain consumers desire. Using acid to remove anything and everything is an age old solution, but isn’t really ideal for the average consumer due to the specialized handling and disposal requirements. Corrosives For Cleaning: This Acidic Trio Is No Acid Trip
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