RINOL ACID STAIN is a compound formed by metallic salts and plugged acids of various nature, it is applied on concrete bases on selfleveling materials etc. and it develops with these a chemical reaction which produces coloured salt crystals which fills the micro holes in the concrete base colouring permanently the surface. It is possible to obtain visual effects that resemble the various marble and natural stones. They are offered in 14 standard colours and it is possible to create a big number of colour tones. The acids can develop different colours if used on different concretes therefore it is advisable to carry out a colour test before carrying out the work. STONE ACID STAIN can be used also on micro-topping, on imprinted floors, imprinted floors on low thickness and stone spray floors to improve the surface and to give different colours tones.