Writing on Plastic





Introduction: Writing on Plastic

Have you ever needed to write on plastic and the ink didn't stick even when you used permanent marker. Well I work in a company that prints on plastic all the time. We prepare the plastic to get the ink to stick by oxidizing the surface first. In short we pass the plastic past a flame that lightly "burns" it. But not enough to see a discoloration.

Step 1: Writing With a Marker

So you want to write something. Try writing on plain plastic.

Step 2: Ink Comes Off

Rubbing a finger across the ink causes it to come off.

Step 3: Oxidize Surface

Use a candle or in some cases a small propane torch. Quickly move back and forth so the plastic doesn't melt or get discolored.

Step 4: Mark the Surface

Mark on the area you flame treated.

Step 5: Rub the Ink

Rub on the area with marker and flame treated. It should resist coming off.

Step 6: Candle May Cause Soot

A candle may cause a soot mark like the one in the picture. Using a small propane torch instead of a candle might avoid this.



    • Oil Contest

      Oil Contest
    • Water Contest

      Water Contest
    • Creative Misuse Contest

      Creative Misuse Contest

    5 Discussions


    1 year ago

    How long dos the heating effect hold good. Can I write on it after few days or months.

    I was curious about what would happen if I put a clear coat of nail polish on top (mine happens to be vegan and non-toxic, and if so whether or not it eliminates the need to set the marker with flame first.

    Exactly what I was looking for. Thanks.

    it also works if you roughen the spot you are going to write on with sandpaper or an Emory board, etc.