Prepping is the most important step in media coating because it ensures the best possible adhesion and durability of the coating. Proper surface preparation removes contaminants like oil, dust, and rust, which can disrupt the bonding process and lead to coating failures such as peeling or bubbling. It also enhances the surface’s roughness, which is crucial for the coating to anchor securely. Without proper preparation, even the most advanced equipment can produce poor results that waste time and materials. Investing in proper prep work pays off through better durability, improved appearance, and reduced rework.