Use permanent adhesive when the finished item needs a lasting bond, such as labels, mounted graphics, signs, or craft pieces that should remain fixed. Repositionable adhesive is better for temporary displays, planning materials, mock-ups, or items that may need to be lifted and placed again. The surface receiving the item also matters. Smooth, clean materials usually provide more predictable contact than dusty, oily, textured, or coated surfaces. Test an unfamiliar material before processing a full batch, especially when removal without residue is important. Repositionable adhesive should not be expected to provide the same long-term hold as a permanent option. Permanent adhesive can be difficult to remove, so it should not be selected for temporary work merely because it feels more secure during initial application.