This is a polymer that has average indicators between vulcanized rubbers and thermoplastics (PP, PE, etc.). TPUs consist of ethers (simple and complex) and diols (diisocyanates).
The area of use of TPE covers most of life support: mechanical engineering, sports and leisure goods, shoe production, construction, cables and profiles, glue, and binders.
It should be noted that TPU does not contain plasticizers. However, for special applications there are brands containing plasticizers. But if you need specific properties, then there are brands with a plasticizer for that.(//tractor-service.com)
The hardness of the brands varies from 60 according to Shore A to 75 according to Shore D.
An important feature is the absence of plasticizers in the recipe. However, for special applications there are brands containing plasticizers.