I’ve been hunting for the perfect white gel pen to complete several projects. I had purchased a few at the craft store that seemed great when purchased, but didn’t perform well at home. I decided to take a piece of art to the craft store to make sure my next purchase would be successful. Here’s what I found: the only white gel pen that did everything I wanted it to was the Uni-ball Signo broad. It was able to write on pastels, acrylics, even washi tape. I’m using mine all the time and only wish I had purchased several.