Concentrated neutral pH cleaner made with ammonium bicarbonate, EDTA and quaternary ammonium salts, and special biodegradable emulsifying agents and surfactants studied based on the AB57 formulary of the Central Restoration Institute, capable of attacking and dissolving the components of organic and weather-related dirt (smog, soot, excrement, etc.). Its delicate and balanced formula allows for intervention even with long contact times, without altering the colour of surfaces, in full respect for the surface to be cleaned.

NOVAPIETRA N can be used on brick, granite, marble, travertine, Serena stone and delicate stone in general, even if polished, and on mineral finishes in general. The product does not attack the original patina of time of the support and does not alter its aspect, rendering it particularly suited to cleaning operations in conservative restoration works for stones and both artistic and monumental items.