What are the key considerations when choosing an epoxy flooring system for a high-traffic commercial space, such as a shopping mall or airport, to ensure long-lasting durability and resistance to heavy foot traffic? How does the installation process differ for epoxy flooring in indoor versus outdoor environments, and what additional factors need to be taken into account for outdoor applications? Can you discuss the role of primers in epoxy flooring greenville sc systems and how they contribute to adhesion and overall performance? Are there any special precautions or maintenance requirements for epoxy flooring in areas exposed to chemicals or spills, such as laboratories or industrial facilities? Can you provide insights on the sustainability and environmental impact of epoxy flooring materials and any eco-friendly options available in the market? In what ways can epoxy flooring be customized or enhanced with decorative finishes, patterns, or logos to create a unique and visually appealing space?