In the field of material protection, PET coatings and UV coatings are two common options, with many differences in performance.
From the perspective of insulation performance, in the battery insulation application scenario, PET \"blue film\" as a traditional insulation protection method has certain effects, but there are hidden dangers in long-term use. For example, in complex environments such as high temperature and high humidity, the \"blue film\" may appear aging phenomenon, and its insulation performance will decline, unable to continue to provide reliable insulation protection for battery cells, thereby affecting the safety and stability of batteries. UV coatings, represented by the UV insulating battery coating (EvoProtect 455 UV) developed by Lankwitzer's Lanwei Coatings (Shanghai) Co., Ltd., perform well in insulation performance. The coating can effectively isolate the internal current of the battery and prevent safety accidents such as short circuits. It is suitable for high-precision inkjet technology, and can accurately coat the paint on the key parts of the battery cell to achieve accurate insulation protection. It can also maintain stable insulation performance under various complex working conditions.
In terms of wear resistance, PET coating is relatively soft, prone to scratches and wear when subjected to frequent friction, which affects its protective effect and aesthetics of the covered object. For example, in the application of some electronic equipment shells, after slight friction in daily use, PET coating may appear obvious scratches, reducing the appearance and texture of the product. The paint film formed after UV coating curing has high hardness. Taking the coating of automotive parts as an example, UV coating can withstand the friction caused by various complex environments during vehicle driving, maintain the integrity and beauty of the surface, and its wear resistance is much better than that of PET coating.
Weather resistance is also the difference between the two. PET coating is prone to fading and brittleness when exposed to outdoor environments for a long time due to factors such as ultraviolet rays, temperature changes, humidity, etc. Like some out-of-home advertising brands use PET coating. After a period of wind and sun exposure, the coating will fade significantly, affecting the advertising display effect. UV coatings have good weather resistance, and their molecular structure is relatively stable under the action of environmental factors such as ultraviolet rays. For example, Lankwitzer's related UV coating products can be widely used in outdoor facilities such as rail transit, which can withstand harsh environments for a long time, maintain coating performance, and prolong the service life of facilities.
In terms of flexibility, PET coatings usually have good flexibility and can better fit the surface of some complex-shaped objects. However, their flexibility also leads to cracking easily in some scenarios that need to withstand large external impacts. Through formula optimization, UV coatings can ensure a certain hardness while also having appropriate flexibility. When subjected to external impact, they can absorb part of the energy through their own elastic deformation, reduce the risk of cracking, and provide more comprehensive protection for the coated object.