Natural Stone cleaning guide

DADS Natural Stone Cleaning Guide

A practical, easy-to-follow guide for cleaning sandstone, limestone and other porous natural stone more safely and professionally.

This guide explains the importance of identifying the surface first, pre-wetting porous stone, using low pressure, choosing suitable chemistry for biological growth, and understanding when sodium hypochlorite may or may not be appropriate.

It also includes Australian examples and conservation guidance, including Sydney sandstone research and BAC-based biocide trials, to help explain why a more controlled approach can protect the surface while still achieving effective cleaning.

Inside you’ll find guidance on:

• sandstone and limestone cleaning

• biological growth and BAC-based treatment

• pre-wetting porous surfaces

• low-pressure cleaning principles

• careful sodium hypochlorite use

• customer risk communication

• Australian sandstone references and research

This is the public DADS guide designed for professional cleaners, property owners and anyone wanting a better understanding of responsible natural stone cleaning.

Digital PDF download.