Although the material of this self-adhesive is called PVC for short, this kind of material is also subdivided: transparent PVC, bright white PVC and matt white PVC.
Material characteristics: waterproof, oil-proof, unbreakable and high temperature resistant (different materials have different temperature resistance).
Advantages and uses of PVC self-adhesive
PVC is non-combustible, with high strength, excellent weather resistance and geometric stability, and strong resistance to oxidants, reductants and strong acids. In addition, because of its good flexibility, shrinkage and opacity, good processing and labeling performance, strong chemical corrosion resistance and durability, it is suitable for long-term outdoor use.
But PVC has poor thermal stability and light resistance. Hydrogen chloride (HCl) gas can be decomposed and released above 140℃, which is not conducive to environmental protection (alkaline stabilizer and HCl are often added in actual production to inhibit its catalytic cracking reaction). In addition, some toxic auxiliary materials such as plasticizer and antioxidant are added in the manufacturing process to enhance its heat resistance, toughness and ductility, so its products generally do not store food and medicine. In addition, PVC label materials have poor degradability, which has a negative impact on environmental protection.