Why Do Most Pens Have Transparent Refills? [Solved]
Hola, iam David Abdul, Promise me you’ll have a good time. Why Do Most Pens Have Transparent Refills? [Solved] Answer. Answer: Basically gel pen’s ink is a suspension of colour particles in a water based gel,unlike the dye-alcohol thing in ballpoint pens. This thick and opaque gel-based ink can leak from the backside of the refill. Pen Refills Explained: All Your Ink Questions Answered Trying to figure out the basics of...