Self-adhesive paper (sticker paper) has a 3-layer structure: face material (wood pulp for printing, PET for durability), adhesive layer (acrylic for strong, long-term stickiness; rubber for easy peeling), and release liner (glassine/PE-coated paper to protect adhesive).
It comes in 60-150gsm face weight, A4/A3 sheets or custom rolls. With ≥3N/25mm adhesion and good printability, it’s widely used for labels, packaging, and promotional stickers.