What surfaces can self-adhesive labels be applied to?

Self-adhesive labels can be applied to most flat, curved, and irregular packaging surfaces, including glass, plastic, metal, coated cardboard, and textured containers, provided the adhesive is matched to the surface energy and texture of the substrate.

Surface energy is the key variable. High-surface-energy materials such as glass and metal accept most standard acrylic adhesives readily. Low-surface-energy plastics such as HDPE and polypropylene are harder for adhesives to wet and bond to, so labels on these substrates need an adhesive formulated for low-energy surfaces, or the label risks lifting at the edges over time.

Surface texture also matters: smooth surfaces allow full adhesive contact, while ribbed, embossed, or matte-textured containers reduce the contact area and require a more aggressive or conformable adhesive to maintain bond strength. Curved and contoured containers can generally be labelled with self-adhesive formats as long as the label shape and application method account for the curvature; very tight curves or compound curves may be better served by a shrink sleeve, which conforms fully to the container shape. Condensation, oils, or chemical residue on the surface at the time of application can also reduce adhesion regardless of adhesive quality, which is why surface cleanliness at the point of labelling is as important as adhesive selection.