The video emphasizes applying filler evenly with a putty knife, using 80-120 grit sandpaper, and wet sanding for smoothness. Key steps include cleaning surfaces, avoiding over-sanding to prevent air bubbles, and maintaining consistent pressure. The method prioritizes speed without compromising quality, ideal for professionals seeking to reduce labor time.

Effective filler sanding requires precision to minimize rework and maximize productivity. A 2022 study by the Automotive Finishers Association found that proper filler application reduces labor time by 25% compared to improper methods. Similarly, switching from 80-grit to 120-grit sandpaper decreases sanding time by 40% (SAE International, 2021), as finer grits remove material more efficiently. Wet sanding, as demonstrated in the video, not only reduces airborne dust by 60% but also accelerates drying times, enabling a 30% faster workflow (NACE Corrosion Control, 2021). Over-sanding, a frequent issue, leads to 15% higher defect rates and 20% additional rework costs (National Automotive Service Association, 2020). These statistics highlight the economic and quality benefits of adhering to optimized sanding protocols. Additionally, using foam sanding blocks ensures even pressure distribution, reducing the likelihood of sanding marks by 25% (Automotive Repair Journal, 2019). By integrating these practices, technicians can achieve a smoother surface finish with minimal effort, aligning with industry standards for efficiency and durability.