Questions about Kärcher Stone and facade cleaner RM 623

The main difference between the two cleaners lies in their formula and application: - Kärcher Stone and Facade Cleaner RM 611: This cleaner has a 3-in-1 formula with active dirt remover, protection formula against re-soiling and wind and weather protection. It is particularly effective at removing road grime, algae and fungi from stone surfaces and façades. - Kärcher Stone and Facade Cleaner RM 623: This cleaner effortlessly removes oil, grease, soot, dust and emission soiling from stone and aluminium facades and other stone surfaces. It is available in a larger container size of 5 litres. Regarding the availability of a larger canister for the RM 611 at Galaxus, this does not appear to be available.

Not at all. According to the operating instructions: "For operation with cleaning agents, a Plug 'n' Clean detergent bottle is required. KÄRCHER cleaning agents can be purchased ready to use in a Plug 'n' Clean detergent bottle ready for use."

Hi Sergio, It is legal to use. In the section “Specification” you will find a link to the safety data sheet that will answer your questions in all detail in terms toxicity and safety measures when you it. This is mandatory information to be supplied for those kind of products. Personally I can confirm that is efficient and easy to use. The result on my terrace with and without the product is quite significant.

No, the cleaner could not remove any rust spots in the concrete. So I used the following cleaner: Mellerud Rust Stain Remover