If it's ordinary film, it can be torn off. And you need to coat the stainless steel with specific laser film. At present, most stainless steels are covered with ordinary films. But if you need to do the laser cutting processing, you'd better require the manufacturer to use specific laser film when you buy the plates. Generally, laser film is thicker. And it's not easy to wear out. Apart from that, it won't be blown away during cutting. It protect the stainless steel all the way.
The stainless steel must be coated with protective film during laser cutting. And the film must be thick and adhesive enough because air will be produced during laser cutting. If the film is not adhesive enough, it will be easy to be blowed. I suggest you to use adhesive film that is 7C or more thick and 80 degrees or more adhesive.
You'd better use laser film on stainless steel. Ordinary film can be easily blown away by the air generated during cutting, mobilizing the cutting piece.
Generally, it's not necessary to tear off the covered laser film. Severe burn may be caused if the film is torn down.
But there's one thing that you must pay attention to that the film can't be covered on the under side of the stainless steel.
Before laser cutting, the stainless steel must be covered with specific protective film. Ordinary film may curl or cause bubbles or even twine around the cutter head.
