This means there is adhesion to the carrier sheet as well. Wait for 5 min. This helps to optimize film adhesion to the substrate making the carrier easier to remove. The best way to remove the carrier is to flick a corner with your finger and then use a piece of tape to pull the sheet off. Pull it off quickly.
All films contain acrylate monomers which can be irritating to the skin.
This is the same for RapidMask. Most people never have a problem. DuPont always uses the least offensive ingredients in their products, but cautions people to be as safe as possible when using their products. With the carrier and slip sheets in place, the film is protected on both sides. RapidMask works differently than other films.