Although both materials have some overlapping features, they have some key differences in terms of their properties and applications. Polyester labels are made from polyethylene terephthalate (PET), a durable and versatile synthetic polymer whereas vinyl labels are made from polyvinyl chloride (PVC), a synthetic plastic material. Polyester labels are known for their exceptional durability. They are resistant to tearing, moisture, chemicals, and UV radiation. They can withstand harsh environmental conditions, making them suitable for outdoor applications. Vinyl labels are also durable, but they are generally less resistant to UV radiation and extreme temperatures. They may not be as long-lasting in outdoor settings and therefore are more commonly used for less-severe applications.
Vinyl labels are better for flexibility. They can adhere well to curved or uneven surfaces, making them suitable for labeling on containers, vehicles, or any equipment with non-flat surfaces whereas polyester labels cannot. This is because they are relatively rigid and less conformable to curved or irregular surfaces.