THE ENVIRONMENT, COMPOSITION, AND PROTECTION OF DAZU ROCK INSCRIPTIONS

The geography, atmosphere, rock mineral, and chemical composition of t he Dazu Rock Inscriptions are described. The results suggest that the main type of weathering of the Dazu Rock Inscriptions is chemical. A n ew product, an acrylate-organic silicon nucleus/shell IPN Emulsion, is developed as an ideal protective material of the inscriptions because of its low contamination properties and low cost. It has the merits o f organic silicon coating and polyacrylate coating, overcomes the ''pr otective'' damage made by the poor wet air permeability (24.0%) of pol yacrylate coating, and a quick decrease in adhesive force of organic s ilicon coating.