This article explains why manual electrostatic spray guns are well-suited for small batch coating projects, covering fundamental principles, setup, and practical tips. It discusses advantages such as high transfer efficiency and edge coverage, alongside considerations like substrate compatibility, coating selection, and environmental factors. The piece also provides best practices for setup, maintenance, safety, troubleshooting, and real-world use cases, concluding with a concise FAQ and actionable guidance for achieving consistent, professional finishes in limited runs.