Have a good day my fine little lab assistants!
When I made this video and recommended the pen I got to thinking, you know, what happens if someone uses this pen on my recommendation and then something bad happens. I didn't test the pen with batting, or over any length of time, with soap, with no washing etc. So I thought, gee, I'm going to read a little more about this pen. Which lead to the discovery that Pilot advises you not to use the pen on legal documents because the ink is temperature sensitive. Well we did prove that. What I didn't figure on is that chilling the ink RETURNS IT'S COLOR.
The fabric that had been rinsed didn't show it's markings,but the one that I didn't rinse.. well you can see with your own eyes.. the ink has returned. Not heavily, but it's there. I did put the fabric in the freezer for 1 minute, and Pilot says returning it to 14 degrees will restore the ink.. but I've seen Chris's front walkway, I'd say there's a possibility it could get cold!
SO.. let me amend my recommendation. It's a cool pen and I still think it has some uses BUT use it knowing that should your piece be subjected to cold weather.. the ink could return.
Phew.. glad we got that figured out in time. xo