Wide Disposable Brush

Tin handled soldering flux brushes (acid brushes) are about the cheapest and best disposable brush around. They're pretty narrow, so when I need a wider one, I simply tape two or three side by side:

Tin handled soldering flux brushes (acid brushes) are about the cheapest and best disposable brush around. They're pretty narrow, so when I need a wider one, I simply tape two or three side by side: