The scratch - resistance of PE (Polyethylene) protective film varies depending on several factors, including its thickness, density, and the addition of special additives.
Generally speaking, common PE protective films have a certain level of scratch - resistance. Their surface hardness allows them to withstand mild scratches and abrasions during normal use. For example, a standard - thickness PE protective film with a thickness of about 0.05 - 0.1 mm can resist scratches from light - duty objects such as fingernails and smooth surfaces. It can prevent the substrate it protects from being scratched by accidental contact in daily handling.
However, if it comes into contact with sharp or hard objects, its scratch - resistance will be challenged. For instance, when exposed to metal tools with sharp edges or rough abrasive materials, the PE protective film may be scratched. The density of the PE material also plays a role. High - density PE protective films usually have better scratch - resistance than low - density ones because the former have a more compact molecular structure, which provides greater resistance to external forces.
In addition, some PE protective films are added with special additives to enhance their scratch - resistance. These additives can improve the film's surface hardness and toughness, enabling it to better withstand scratches. Such films can resist scratches from more abrasive objects and have a longer service life in harsh environments.
In conclusion, while PE protective films have a certain ability to resist scratches, their specific scratch - resistance level depends on multiple factors. It is necessary to select the appropriate PE protective film according to the actual use environment and requirements to ensure effective protection of the substrate.
english 
Language
