Adhesion properties and the printability of plastic are also due to the molecular structure of polymers.
Generally, polar and amorphous structures offer better properties. In contrast, the non-polar and crystalline structure inherently causes difficulty in adhesion and printing, unless the product surface is treated, and the effectiveness of such surface treatment is comparatively low. The chart shows the adhesion and printing properties of major plastics.
PVC has excellent adhesion properties and printability, and is used for the decoration or design oriented products such as wall covering, flooring, synthetic leather, displays, and stone or wood grain printed films. PVC is also used as adhesive/paint by mixing with water or solvent.