Questions and Answers for CLR 28 OZ-Ounce Calcium Lime Rust Remover

A:  While our CLR Calcium, Lime and Rust is safe to use on stainless steel, if you're looking to use it on the exterior of stainless steel appliances, we recommend contacting the manufacturer of your refrigerator for their recommendations for products safe to use on their materials. Since there are different grades of stainless steel, many appliance manufacturers use lower grades for their panels and/or coat their panels to repel dirt & fingerprints in which case our product would not be recommended.

A:  While our CLR Calcium, Lime and Rust Remover is effective in dissolving rust, in addition to calcium & lime, it's safe to use only on porcelain or ceramic tiles and white grout only (no other color). As with any product we always recommend spot testing first.

A:  We do not recommend using our CLR Calcium, Lime and Rust Remover (the only one of our products that contain the necessary chemicals to remove rust, in addition to calcium/lime) on any clothing, fabrics, material or carpet. The acids in our product can harm the fibers in fabrics/clothing.

A:  We do not recommend using any of our products on any material associated with a pool (either on the inside or outside). Our product can never come into contact with chlorine or it will create a poisonous gas. We recommend contacting a professional pool maintenance expert for their recommendation for safe and effective products to use to remedy the mineral deposits you’re experiencing.

A:  Product question doesn't apply to product category

A:  Product question doesn't apply to product category

A:  While our CLR Calcium, Lime and Rust Remover (in the grey bottle) is safe to use on concrete pavers, we recommend using a 50/50 blend of CLR and warm water solution, pick an inconspicuous SPOT TEST AREA FIRST (to see if there will be any chemical reaction between our product and your concrete). Since concrete is naturally made of calcium, you run the risk of altering the pigment and composition when using a calcium remover, such as our product, on something naturally made of calcium. Apply the solution to the SPOT TEST AREA using a damp cloth or sponge, let sit for no longer than 2 minutes (using a scrub brush on the stain while the solution is on the material is safe and recommended) then rinse thoroughly with cold water. Let spot area dry completely (usually overnight) to see if there was any negative chemical reaction, if not, it would be safe to go ahead and use it on the other affected areas. Note: per the directions on the back of the bottle, do not use on tinted, sealed, stamped or coated concrete.

A:  We do not recommend using our CLR Calcium, Lime and Rust Remover on any painted, coated or sealed surfaces. The acids in our product can remove paint/

A:  Product question doesn't apply to product category

A:  Depending on the material of you faucets (our product is safe to use on chrome or stainless steel only, no other metals/finishes) & the sink material (our product is safe to use on porcelain, stainless steel & fiberglass....no plastics or natural/artificial stones), you would use as directed per the back label of the bottle. #1 spot test. #2 Mix equal parts CLR Calcium, Lime & Rust Remover and warm water # 3 apply to the affected areas of the faucet base/handles. Scrub with a soft nylon scouring pad. #4 After 2-3 minutes rinse promptly & thoroughly with clear cold water. Repeat this process, if necessary.

A:  While our CLR Calcium, Lime and Rust Remover (in the grey bottle) is safe to use on brick, we recommend using a 50/50 blend of CLR and warm water solution, pick an inconspicuous SPOT TEST AREA FIRST (to see if there will be any chemical reaction between our product and your brick). Since brick is naturally made of calcium, you run the risk of altering the pigment and composition when using a calcium remover, such as our product, on something naturally made of calcium. Apply the solution to the SPOT TEST AREA using a damp cloth or sponge, let sit for no longer than 2 minutes (using a scrub brush on the stain while the solution is on the material is safe and recommended) then rinse thoroughly with cold water. Let spot area dry completely (usually overnight) to see if there was any negative chemical reaction, if not, it would be safe to go ahead and use it on the other affected areas. Note: per the directions on the back of the bottle, do not use on tinted, sealed, painted, or coated brick.