I can't believe how well these work on glossy surfaces! I did a test on some scrap glossy photo paper before I tried them on a project to see how fast I could smudge my hand across it without it smearing. You can't touch it immediately, but seriously only 2-3 seconds later you can rub across it (with a firm touch too) and it won't smear a bit! I can't believe it! They write really well too--just like a regular sb'ing pen. I only wish I could get more colors--I'd stock up for sure!
I couldn't ask for a better journaling pen. It's fine so that your journaling doesn't look sloppy and you can write on any surface! Who doesn't love that?! These are definitely my go-to for any writing that I do. They dry instantly so that you don't have to waste a bunch of time waiting around for your journaling to dry so that you can slide the layout into it's protector. Love em!!
The Slick Writers work great on shiny surfaces. They dry almost immediately and do not smear. I have very shiny Christmas cards this year and these worked super. The first time one is opened, you do have to scribble on something shiny to get the ink flowing, but once that is done they work very well. Slick Writers also work well on photos.