Is powder coating more effective than painting?

It depends on what you mean by effective. Painting with traditional wet paint is quick, easy, simple, and cheap. You don’t need any real specialist equipment to do it, and you don’t need a large dedicated area for it.

On the other hand, powder coating gives a far more durable finish. It’s neater, more uniform, and much more hard-wearing than wet paint, and it can actually be quicker to powder coat large items than it is to paint them.