Acid Stain concrete is a real tailored-made flooring solution that is designed and realised on the basis of the final requests of the project manager and the client. Acid Stain floors are made from specific acids based on metallic salts which penetrate the concrete and change its colour in order to create unique and long-lasting effects. Reactive stains do not create a film but chemically change the colour of concrete, producing permanent, variegated or translucent effects, very similar to natural stone shades, or an aged look. The result is exceptional for each surface and it can’t be reproduced by other colouring materials. The concrete floors loose their simple look and become increasingly more natural and beautiful.