Do not use Calcium, Lime and Rust Remover on any natural stone or marble (including cultured marble), terrazzo, colored grout (any other color than white), any painted, coated, sealed or metallic glazed surfaces, plastics, laminates, Formica, Corian, aluminum, galvanized metals, nickel, oil rubbed bronze, brass, copper, steam irons, leaded crystal, refinished tubs or any damaged or cracked surface. Calcium, Lime and Rust Remover may etch older sinks, tubs and tiles. Calcium, Lime and Rust Remover is corrosive. Avoid contact with wood, clothing, wallpaper and carpeting. Some laminated surfaces (counter tops) are coated with a synthetic surface which may be affected by rust removers; clean spills immediately. Always spot test first on an inconspicuous area.

When cleaning a showerhead, we recommend using a 50/50 solution (equal parts) of Calcium, Lime and Rust Remover and warm water. If possible, remove the showerhead and submerge it in the solution for no longer than 2 minutes (using an old toothbrush on the face of the showerhead after it has soaked will assist in removing the mineral buildup) then rinse promptly and thoroughly with cold water. Repeat at full strength if necessary, rinsing thoroughly after each application.

To clean hard water stains, we recommend using a 50/50 solution (equal parts of Calcium, Lime and Rust Remover and warm water) into a glass or porcelain bowl. Apply solution to the affected stained areas of the glasses using a damp cloth or sponge. After 2 minutes, rinse thoroughly with cold, clean water. If it seems that Calcium, Lime and Rust Remover helped a bit but the glasses are not completely clear, repeat at full strength if necessary. Due to the natural density and hardness of calcium as a mineral, the calcium can actually etch and embed itself into the material of the glass (usually present by having a cloudy appearance vs. spotty).

If it seems that the Calcium, Lime and Rust Remover did not help at all, the glasses may be etched and there is no remedy to remove the cloudiness from the glasses. The cloudiness is actually tiny cuts made in the glass by deposits in the water. The only thing that may remove the etching is a jeweler’s polish.

It is not recommended that Calcium, Lime and Rust Remover be used in steam irons. The acids in our products are not compatible with the components of steam irons, steamers or steam machines. We recommend contacting the manufacturer of your particular steam iron, steamer or steam machine for their recommendation for products safe and effective on their materials.

We do not recommended using Calcium, Lime and Rust Remover on a car. The acids in our product should not be used on aluminum or any painted/coated surface. You can safely remove rust from car wheels (if rims are made of chrome or stainless steel only, no alloys).

Calcium, Lime and Rust Remover should not be used in or on a car radiator. Calcium, Lime and Rust Remover may not be compatible with the materials associated with a radiator and it could have adverse effects if the Calcium, Lime and Rust Remover is not rinsed out completely.

We do not recommend using Calcium, Lime and Rust Remover to clean ice makers. The acids in our product are not compatible with the components of ice makers. We always recommend referring to the manufacture's recommendation for safe and effective products to use on their materials.

We do not recommend using our Calcium, Lime and Rust Remover to remove oil. If Calcium, Lime and Rust Remover is mixed with oil, it will darken the concrete, which is very difficult to remove. 

Yes, Calcium, Lime and Rust Remover is septic safe. By the time it reaches the septic system it is neutralized with water.

We do not recommend using Calcium, Lime and Rust Remover on or in any materials associated with a swimming pool. Calcium, Lime and Rust Remover should never come into contact with chlorine (or any other household chemical). It can create a poisonous gas and is not safe. We recommend consulting with a pool maintenance expert for recommendations for products that would be safe and effective.

Unfortunately, we do not recommend using Calcium, Lime and Rust Remover on pool tile. It could remove the finish from the tile. In addition, if Calcium, Lime and Rust Remover comes in contact with chlorine, it could result in toxic fumes. We recommend consulting with a pool maintenance expert for their recommendation for products that are safe and effective.

We do not recommend using Calcium, Lime and Rust Remover on any natural stones, especially marble (even synthetic). The acids in our product will remove the seal, penetrating the marble and can compromise the natural beauty of marble. Even synthetic marbles are coated and real marble dust is used to give the effect of real marble. If you spill Calcium, Lime and Rust Remover accidentally on these surfaces, make sure to call a marble professional for further instructions.

We do not recommend using Calcium, Lime and Rust Remover on galvanized metals. When a metal is galvanized, a Zinc coating is put over the metal (usually to protect it from rusting). The acids in Calcium, Lime and Rust Remover will remove the Zinc which could compromise the material.

We do not recommend using Calcium, Lime and Rust Remover on cast iron. The acids in Calcium, Lime and Rust Remover can compromise the metal.

We recommend using or disposing of Calcium, Lime and Rust Remover within 3 years. Make sure cap is securely fastened after each use.

We do not recommend using Calcium, Lime and Rust Remover on any natural stones, including granite. The chemicals in the Calcium, Lime and Rust Remover can remove the seal and penetrate the stone.

Jelmar DOES NOT RECOMMEND the use of Calcium, Lime and Rust Remover in or on any water heaters (tank or tankless); however there is a website that does. Again, JELMAR DOES NOT RECOMMEND THE USE OF IN A WATER HEATER. The chemical make-up of Calcium, Lime and Rust Remover is not compatible with the materials or components of a water heater and cannot be thoroughly flushed through the water heater after 2 minutes. We recommend using what the manufacturer of the water heater deems safe and effective.

Yes, Calcium, Lime and Rust Remover is found to be safe on fiberglass. Always spot test first in an inconspicuous area. Begin with a mixture of Calcium, Lime and Rust Remover and water and progress to full strength if needed.

No, Calcium, Lime and Rust Remover should never be used on clothing. Please find an appropriate stain remover or laundry detergent. If Calcium, Lime and Rust Remover is spilled on fabric, you must rinse immediately. It may break down the fibers in clothing and/or fabric.

Calcium, Lime and Rust Remover should not be used to clean rugs or carpeting. Calcium, Lime and Rust Remover can break down the fibers in rugs and carpeting and pull the color out.

Yes, Calcium, Lime, and Rust Remover is great for cleaning pet bowls from food, grime and water deposits! Dilute equal parts warm water and Calcium, Lime, and Rust Remover to clean ceramic, stainless steel or plastic bowls. Leave on for 2 minutes using a sponge or scouring pad to assist in removal of stains, then rinse thoroughly with cold water. While our product is non-toxic we recommend washing the bowls prior to putting food or water back in them.

Our Calcium, Lime and Rust Remover is non-toxic and water soluble. The chemicals in the product are derived from vegetables, however we recommend all safety precautions be followed, per the back label of the bottle.

Calcium, Lime, & Rust Remover and Probiotic Multi-Surface are both biobased products, meaning they contain largely renewable and plant-based ingredients. CLR Brands^TM has been recognized as a BioPreferred Champion for 2022, signifying our commitment to using renewable materials, supporting the bioeconomy, and bettering the planet. USDA's BioPreferred Program was first introduced in the 2002 Farm Bill with the goal of increasing the development, purchase, and use of biobased products.