CLR Calcium Lime Rust Remover, Enhanced Formula, 28 fl oz (828 ml)

Product Information

Since chelating removers are non-toxic and acid-free, you can safely use them indoors on a wide range of materials without fear of damaging them or surrounding surfaces. They aren't as powerful as chemical rust removers but are far safer and more convenient. Once you’ve finished, dispose of any leftover CLR solution and thoroughly clean your equipment and protective gear.

In chemistry, rust is commonly referred to as iron oxide. Meaning, for it to occur, there has to be oxygen, iron, and more importantly, moisture. The reaction between these elements is not instantaneous, but gradual. That’s to say, you have to leave the metal exposed for a considerably long period of time before it starts exuding any signs of corrosion. Duration of application: The recommended time for application is noted on all products. For some products, there is a different prescribed time that depends on the severity of the rust and the type of surface treated. Of the products we tested, Evapo-Rust – Super Safe Rust Remover had the widest range of recommended application times.

Colorent: CAS #1934-21-0. A synthetic lemon yellow dye used all over the world, primarily as food coloring. As part of the EPA Safer Choice Program, it has been evaluated and determined to be safer than traditional chemical ingredients. Solvent: CAS #55934-93-5. Used to slow down the evaporation of many liquid products including oven cleaners and inks for ball-point and felt-tip pens. It is very effective at absorbing organic material. As part of the EPA Safer Choice Program, it has been evaluated and determined to be safer than traditional chemical ingredients. This mild formula won’t damage your paint or clear coat. This makes it an ideal choice for vehicles. You can target small rusty spots without worrying about overspray that gets on nearby paint. For really severe rust, it’s best to remove larger flakes and areas before using this spray. It’s a bit milder than some heavy-duty rust removers. Powdered rust removers are often used to remove rust stains from anything near a rusty metal surface, including fabrics, ceramics, and concrete. This type of rust remover is frequently made from sodium hydrosulfite, which can remove rust without damaging delicate materials. Depending on the powdered rust remover, you may either have to apply it directly to the stain or mix the powder with water and soak it by submerging the entire item in the solution. Safety First If you want powerful rust removal without harsh chemicalsor irritation, a bottle of nontoxic Evapo-Rust is the way to go. It’s pH-neutral and won’t harm even delicate antiques while it removes rust down to the bare metal. The formula is water-based, so all you need to do is submerge your items so it can work its magic. Plus, it’s a great option for auto parts and tools, especially those that are made entirely of metal.

In very broad terms, household rust removers are designed to work in one or two simple applications. They can be divided into products that are intended exclusively for metal and products with a wider range of applications such as vinyl, ceramic tile, fiberglass, and even carpet and fabrics. We sought out the best representatives for both these categories. How we tested Lactic acid happens to be the main ingredient, as it accounts for a significant percentage of the total volume and weight. They used to add phosphoric acid in the past but had to find an alternative when they realized that it adversely affected users. It’s important to follow the instructions on the CLR product label carefully and wear protective gear while using it. Additionally, be sure to test the product on a small, inconspicuous area of the concrete surface first to ensure that it won’t cause any damage or discoloration. Step-by-Step Instruction On Will Clr Remove Rust From ConcreteSince rust converters can simply be applied without having to rinse or wipe off the rust afterwards, it’s usually the ideal solution for covering a large surface area. Since they’re frequently available in spray bottles or aerosol cans, they can also be more useful for applying to hard-to-reach areas that you can’t access by hand. This category includes nitric acid, acetic acid (white vinegar), phosphoric acid, hydrochloric acid, sulfuric acid, muriatic acid, oxalic acid, and citric acid. The typical percentage of acid in a rust remover is about 30 percent—the maximum amount that can dissolve in water and serve as a cleaning agent. Though effective and fast, usually working within minutes of application, acids emit harsh chemical fumes, so you must use them in an outdoor or well-ventilated space and wear protective gear (goggles, face mask or respirator, and rubber gloves). The products were applied according to instructions. Where a range of application times was given, we used the midpoint time. Where possible — for example, on the work table — we applied simultaneously multiple products to compare performance. For other rusted objects, such as workshop tools, we applied each rust remover separately. Outdoor furniture and tools Chelating Agent: CAS #79-33-4. Lactic acid is found in many yogurts and cheeses. It is also produced in the muscles during intense activity. Commercially, it is produced by fermentation of simple sugars. In cleaning products it functions as a chelating agent; a compound that makes metals more soluble in water.

Chelating Agent: CAS #526-95-4. This ingredient is an acid formed from the sugar glucose, which naturally occurs in fruit, honey and wine. It is a chelating agent; a compound that makes metals more soluble in water. As part of the EPA Safer Choice Program, it has been evaluated and determined to be safer than traditional chemical ingredients. Naval jelly usually comes as a ready-to-use gel. Spray-on rust remover can also be supplied as a thin gel but is frequently a liquid. The advantage of the former is that it clings better to metal surfaces. Rust converters are often supplied in spray bottles but also as aerosols. The latter are very convenient, but most are comparatively expensive. Pitting: Results from trapped moisture and is commonly found in the cavity areas of tools and furniture. Common methods for removal There are different variants of the CLR stain remover because they are all designed to be applied on specific surfaces. For example, if you’d like to remove stains from a concrete surface, you’ll go for one that’s powerful enough to get the job done.It yielded positive results in a matter of minutes, as compared to some other products that require hours of treatment. Like all of our tested products, CLR was easy to clean up with paper towels or a sponge, and it left little or no residue. When using chemical rust removers, especially acid, work in a well-ventilated space and protect yourself with the proper protective equipment, including goggles, gloves, and work clothing to cover any exposed skin.

Calcium Lime Rust, popularly known as CLR is a common cleaning product in most households. Some of the ingredients used in the production of this stain remover are mostly compounds such as citric acid, disodium capryloamphodipropionate, lactic acid, propylene glycol, sulfamic acid, water, and several others. Colorent: CAS #1934-21-0. A synthetic lemon yellow dye used all over the world, primarily as food coloring. We are against spray bottles because the solution has always been treated as an inhalation hazard. If you’re going to apply it, use a scrubbing brush or sponge—anything that doesn’t spread the solution in the air is okay. Since they won’t burn your skin or produce harmful fumes, petroleum-based rust removers are also much safer to use than acid-based options. That said, we still recommend using eye protection and gloves for any chemical-based option, since they can be harmful if they get in your eyes or under your skin.While rust conditions might all look alike to the untrained eye, there are subtle differences in the nature of how rust occurs, even within the confines of a small tool like a wood plane. An ideal sample of different types of rust includes four variations: stable rust, flash rust, flaking rust, and pitting. Rust removers can work to dissolve rust, remove rust stains, or prevent rust from reforming. The best solutions do all three. You can find them in a spray bottle, liquid application for soaking or pouring, or a paste. Acids also incur the risk of surface damage due to corrosiveness. Naval jelly, a phosphoric-acid-based, caustic rust remover, is suited for heavily rusted iron or steel but should not be used on delicate materials like fabrics or on aluminum, chrome, stainless steel, cement, fiberglass, marble, plastics, or painted surfaces (it will remove paint). On the plus side, naval jelly gets rid of rust buildup in about 5 to 10 minutes, and any excess product can be removed and the area cleaned with water. Sodium Hydrosulfite