Suggestions for etching into Transparent TPU?

I have a project where I am etching Transparent TPU but it leaves a sticky residue behind after I etch it. I’ve tried using rubbing alcohol to clean it up but I haven’t been able to get a clean finish. Any suggestions?

Thanks in advance!

cool - this is a me too; at least a thought concept i’ve played around with (trying to engrave just about anything in the house that’s not PVC… :slight_smile: )

what settings have you used? Did you mask?

I’ve currently come to the settings for etching at 1000s/25p
Here’s a picture of it masked versus unmasked. Doesn’t seem to make much of a difference.

I tried cleaning it up with a magic eraser and then wiped it down with a paper towel. It seemed to work pretty well.


that’s flexible TPU like for a phone case or something? or is it rigid?

It’s really flexible. Like pvc but I know it is not pvc.

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