CLR is acidic in nature and the solution could corrode the plastic container that you are using to hold the CLR.

We do not recommend using CLR Calcium, Lime and Rust Remover on any natural stones, especially marble (even synthetic). We always recommend referring to the manufacture's recommendation for safe and effective products to use on their materials. Leave on for 2 minutes using a sponge or scouring pad to assist in removal of stains, then rinse thoroughly with cold water.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. Most purchases from business sellers are protected by the Consumer Contract Regulations 2013 which give you the right to cancel the purchase within 14 days after the day you receive the item. We recommend contacting the manufacturer of your particular item for their advice on suitable cleaning solutions. I created a horrible dark grey stain in my white toilet pan when I scrubbed limescale with a metal scourer.

You can safely remove rust from car wheels (if rims are made of chrome or stainless steel only, no alloys).Limescale tends to build up inside radiators, engines, coolers, machinery and pipework, especially in areas where hot water is present. The acids in our product will remove the seal, penetrating the marble and can compromise the natural beauty of marble.