Material: Laminated polypropylene die cut stickers are manufactured to be both waterproof and scratch-resistant. This means you can stick them to any smooth surface and they will stay beautiful. Adhesive: Our stickers feature a permanent adhesive that will not damage most surfaces. Certain surfaces and durations may cause the bond to become stronger and may leave a residue when removed. Don’t worry! This can easily come off with warm soapy water or any type of adhesive remover.