Is Acrylic Graphic Overlay Easy to Scratch?

As an interface protection material for industrial equipment, the scratch resistance of acrylic graphic overlay is directly related to the material properties and processing technology. The product is composed of a polymethyl methacrylate substrate combined with a printed layer. The surface hardness depends on the molecular chain arrangement density of the polymer and the chemical properties of the additional coating. When the substrate without special treatment is exposed to friction with metal tools or rough objects, the molecular chain breakage at the microscopic level may cause visible scratches. This phenomenon is related to the distribution of energy on the surface of the material and the friction coefficient.

The hardening technology in the production process can form a dense cross-linked network on the surface of acrylic graphic overlay through UV curing or nano-coating deposition to improve shear resistance. The adhesion strength of the printing ink affects the risk of delamination of the composite structure under mechanical stress. The weak bonding interface may increase the visual significance of the scratch damage of acrylic graphic overlay due to local peeling.

In addition, the cumulative wear caused by repeated contact with acrylic graphic overlay may change the surface light refractive index and form a fogging effect. Some manufacturers reduce the initial surface roughness of acrylic graphic overlay by optimizing the polishing process to reduce the threshold of friction contact.