Have you ever heard of Pen Turning or Polishing? No? Well, it’s a art form where people hand craft fountain pens. Guess what they use to make the hard mirror finish? Yup. CA. They use Thin CA for the base coat, and then Medium CA for the hard exterior coat. The product of choice for most Pen Polishers has been BSI Gold…until now. Read this review (click link below for PDF) to find out how well Mercury Adhesives’ performed!