Stubborn Paper Masking

Paper masking protects acrylic sheet from scratches and is normally easy to remove. It is the best masking to protect the sheet, but if the sheet has been stored in a hot area, exposed to sunlight for a long period of time or if the sheet is very old, usually 3 years or more, the adhesive will actually weld to the sheet and you can’t remove it, no matter how hard you try.