Limestone sculptures are prized for their beauty and historical significance, but they are highly susceptible to chemical erosion caused by environmental factors like acid rain, pollution, and moisture. To preserve these artworks, several effective methods can be employed.

1. Protective Coatings: Applying specialized sealants or waxes creates a barrier against harmful chemicals and moisture. Silane-based or acrylic coatings are commonly used for their durability and non-yellowing properties.

2. Environmental Control: Limestone sculptures should be placed in controlled environments with stable humidity and temperature. Indoor display with air filtration systems minimizes exposure to pollutants.

3. Regular Cleaning: Gentle cleaning with pH-neutral solutions removes corrosive deposits without damaging the stone. Avoid harsh chemicals that accelerate erosion.

4. Shelter or Canopy Installation: For outdoor sculptures, installing protective canopies shields them from direct rainfall and airborne pollutants.

5. Routine Inspections: Frequent checks for early signs of erosion, such as discoloration or pitting, allow for timely intervention and repair.

By combining these methods, limestone sculptures can be preserved for generations, maintaining their artistic and cultural value. Proper care ensures they withstand the test of time while retaining their original beauty.