metal powder coating

https://durablemetalcoating.ironwoodscope.com/posts/choosing-a-durable-metal-coating-for-pearland-s-climate-and-your-project-needs

Metal powder coating is a dry finishing process that uses electrostatically charged particles of pigment and resin. Unlike liquid paint, it's applied as a free-flowing powder and then cured under heat, creating a hard, durable layer that resists chipping and fading. It's what gives outdoor furniture, car parts, and industrial tools that smooth, even color.