If you have multiple plastics then i prefer the oven method since you can do a bunch at once.
How to remove acrylic plastic sheet liner.
Peeling the film should effectively remove it.
Cleaning the acrylic plexiglas most likely will be necessary though because smudges probably will occur while removing the film.
I quickly grew tired of working my fingers to the bone removing the protective film.
Using clamps to hold the sheet to the table makes the process easier.
The masking may be removed for intricate detail work on the sheet if necessary.
The sheet masking should be left in place during most fabrication operations to protect the sheet surface.
Certain heat sources used in line bending and thermoforming operations may also require removal of the masking.
When you purchase acrylite acrylic glazing from frame destination it will arrive with a protective covering on both sides to prevent the glazing from being scratched.
Residue can also be left behind by tape or other sticky substances.
If it does slowly work your way across the sheet if you go too fast the paper will rip making removal more difficult.
Heat gun is good and you can see how it works in the video.
The easy way to get that annoying paper sheeting off your acrylic parts.
Using a specific product called novus 1 developed for cleaning and polishing will restore luster to the plexiglas surface.
Many of these sheets used an adhesive that is heat activated.
Break the sheet at the scored line by pressing down on the outer edge in a quick motion.
You can wrap your hand around one edge and use your body weight to push down.
1 cup warm water.
Break the acrylic sheet.
You can try using an electric hair dryer to warm the corner of the sheet and see if this loosens the paper.
Acrylic glazing sometimes referred to as plastic or plexiglass is a popular substitute for glass in picture framing because it is lightweight and shatterproof.
It is frustrating to remove a sticker from acrylic only to find a sticky residue left behind.