What is the difference between TPU and PVC?

TPU = Thermoplastic polyurethane
PVC = Polyvinyl chloride

PVC It is a very common material because it makes up the majority of plastic objects. Very economical, this material has many defects for inflatable bubbles. In fact, it is a fragile, thin material that deteriorates very quickly, becoming opaque.
--> Although cheaper, PVC is no longer used for the manufacture of inflatable bubbles.

 

The TPU It is much less common because it is more expensive but has many advantages for making bubbles.
Much more robust than PVC, because on the one hand it is much more flexible and resistant to impacts but also because it is a pure material unlike PVC which is a mixture of several products.
Will not change color over time
--> Although much more expensive than PVC, it is today the only valid material for making bubbles.

In new screens, it is almost impossible to differentiate TPU from PVC with the naked eye. On the other hand, given the large price difference, the temptation to mix TPU with PVC during manufacturing is great, some factories do not hesitate. to take the step.
--> The choice of manufacturer is, therefore, essential.