Concentrated neutral pH cleaner and sanitiser with quaternary ammonium salts to eliminate layers of micro-organisms responsible for deterioration (mosses, lichens, yeasts, moulds, etc.). Its selective action acts exclusively on invasive substances without altering the colour of surfaces, in full respect for the support to be cleaned. Its delicate and balanced formula allows it also to be used in interventions with long contact times.

NOVAPIETRA BIO can be used on natural stones and items of all type and nature, even if polished or lead polished, plasters, skim plasters or aged paint. The product will not affect the original patina of time of supports and does not alter their aspect, rendering it particularly suited to cleaning operations in conservative restoration works for stones and both artistic and monumental items, and for the preparation of sub-bases before the application of a skim plaster or finish.