Colourcoustics is a seamless surface treatment based on acoustic permeable mortars. It can be applied on a multitude of substrates, such as Sonaboard (mineral wool), Sonacoustic PL1 or other acoustic treatments. Even perforated PYL boards can be easily converted into smooth surfaces, improving their appearance and acoustic absorption. There are 16 standard colors, but any color can be ordered for medium quantities (> 500 m2). Its ease of application makes it very suitable for rehabilitation. It is carried out in a single application with specific projection machinery. Colorcoustics drastically increases the surface hardness of any substrate, and can also be applied to walls due to its high hardness.