Because automobile labeling needs outdoor use, sun protection and rain prevention, the usually used material is PVC or PET.
PVC the product has chemical stability resistance to oxidants, reducing agents and strong acids have a strong resistance. However, it can be corroded by concentrated sulfuric acid, concentrated nitric acid and other concentrated oxidizing acids, and is not suitable for the occasion of contact with aromatic hydrocarbons and chlorinated hydrocarbons.
PVC has the advantages of flame self-extinguishing, wear resistance, noise damping, high strength, good electrical insulation, low price, wide source of materials, good air tightness and so on.
The disadvantage of PVC is poor thermal stability, light, heat, oxygen is easy to aging. The long-term service temperature of most PVC plastic products should not exceed 55℃, but the long-term service temperature of special formula PVC plastic can reach 90℃.
PVC it has no inflammability, high strength, resistance to climate change and excellent geometric stability, oxidant, reducing agent and strong acid has a strong resistance. In addition, due to its good flexibility, shrinkage and light resistance, good processing and labeling performance, strong chemical corrosion resistance, ruggedness and durability, suitable for long-term outdoor use.