How does the porosity of cast iron impact the adhesion of protective coatings on animal sculptures?
The porosity of cast iron plays a critical role in determining the effectiveness of protective coatings applied to animal sculptures. Due to its inherent porous nature, cast iron can absorb moisture and contaminants, which may compromise coating adhesion if not properly prepared. To ensure long-lasting protection, surface treatments such as sandblasting or priming are often required to seal pores and create a smooth substrate. Additionally, coatings like epoxy or polyurethane are preferred for their ability to penetrate and bond with porous surfaces. Understanding these factors helps artists and conservators preserve the beauty and integrity of cast iron animal sculptures for years to come.
