I'm making a mini cape out of flexible vinyl, like the kind used for window clings. I need to leave light blue, permanent marks on the vinyl that won't peel or flake as the cape is flexed.

I'd really prefer a pen or marker of some kind, because I need to make designs that I am not confident I can do with a brush. The designs also need to be quite fine, like 2-3 mm max.

Is there a single type product that would work? Or would I need to use multiple products (application + sealant?). I have no idea what will actually adhere to the vinyl without smearing.

Here's a prototype of what I'm working on, for context:

enter image description here

As an added bonus, I've found out that the material grabs my finger prints very easily, so preferably the solution will hold up to being wiped down periodically to remove prints.

  • That's weird looking spiderman
    – Vishwa
    Jan 31 '18 at 10:21
  • @Vishwa imdb.com/title/tt0207120
    – user24
    Jan 31 '18 at 15:18
  • no no I'm familiar with the cartoon. I meant that figurine in first photo. he looks at me weird
    – Vishwa
    Feb 1 '18 at 4:49
  • @Vishwa It's the only one from that show they made. 😭Beggars can't be choosers.
    – user24
    Feb 1 '18 at 15:55
  • ha haa.. gotcha ;)
    – Vishwa
    Feb 5 '18 at 5:36

I would try with a sharpie or other alcohol based marker. Look for the industrial version.

As I wasn’t aware you needed colors, I didn’t recommend posca paint markers, which are acrylic-based and permanent.

What it sounds like you’re going to need to do is to clean the surface to be painted with rubbing alcohol. The apply a fine mist of plastic primer from a spray can in several light coats. You can usually find them in most automotive shops. Then apply your marker and let dry. Cover with a gloss coat of spray varnish.

One last alternative might be colored nail polish.

  • I found the perfect colored Sharpie, non-industrial, today, and it smears off pretty easily. I'm not finding the industrial or "Pro" in the color I need.
    – user24
    Jan 26 '18 at 2:12

There is also the sheets of colored duct tape that you could cut out the design. That should stick and flex with the vinyl.

  • Except it will get creases. Jan 27 '18 at 8:19
  • While a possibly viable solution, it would lead me to have to ask "how to effectively cut tape into detailed patterns" and then also how to apply it perfectly straight.
    – user24
    Feb 5 '18 at 18:07

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