Burned marks on window film

Hi everyone, just in case someone knows a magic trick, I have to cut numbers on a frosted window film but whatever the power or speed, either I don’t go through (not enough power) or I create burned marks. Any idea?


Possibly because that material is forbidden to be processed by laser. Window film usually means PVC. If it is in fact PVC, you’re killing the machine and could harm yourself or others.

If it is not Vinyl film (PVC) and is Polyester film (PET), then you are experiencing the challenge of PET in a laser. To not get burned PET, I have to use very high speed and power.

You also want to blast it with air.

Oh dawn, you were right, it’s PVC, hopefully, I have not cut dozen of them!

For future reference, if you are unsure about the material: