CleanPrince Urine Stone Remover Gel depending on the degree of contamination Dilute 1:1 or 1:5 with water and apply to the surface to be cleaned. After a Exposure time of 5 to 10 minutes Rinse with plenty of clean water. If stubborn dirt is present, repeat the process if necessary. repeat. The liquid and its vapors have a corrosive effect on metals. Do not use the product on chrome surfaces or other acid-sensitive surfaces. Ensure adequate ventilation when using. This product must always be tested for compatibility before use in a hidden area. Improper use voids all liability for possible damage. Safety advice: P102: Keep out of reach of children. P280: Wear protective gloves/protective clothing/eye protection/face protection. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water fo.