The material should have a hardness in the range of 30 Shore A to 50 Shore D, and preferably in the range of 60-80 Shore A.

Every hardness degree corresponds to a different color of the pad: Shore A 4 White, Shore A 6 Green, Shore 8 Yellow, Shore A 12 Blue, Shore A 16 Red.

Hardness range from 5 Shore A to 60 Shore D (SBS 30 Shore A to 45 Shore D)

Upon curing, the adhesive preferably has hardness levels ranging from about Shore A 20 to about Shore A 95.

The shore A hardness of the elastic material is 60 or more or the shore D hardness of the elastic material is 30 or more.

A non-pneumatic tire comprising two or more radial regions (452, 454) have differing Shore A/ Shore D hardness.

One of the portions can have a hardness of 80 to 90 shore A while the other portion can be 60 to 70 shore A. In some embodiments, portions with 60 to 70 shore A hardness can be about six to twelve inches long.

The density of the plastic layer (2) is below 0.75 g/ cm³, and the Shore hardness amounts to less than 58 Shore A.

Silicone Engineering can produce solid silicone from 30 shore A (very soft) to 80 shore A (hard)

Durometer ratings may range from Shore A 30 (very soft) to Shore D 80 (very hard).

They are restricted to the top end of the hardness scale, typically >80 Shore A.

The outer layer consists of a thermoplastic polyurethane with a Shore A hardness of 97 maximum, preferably 90 maximum, and optionally additional additives.

Hardness is restricted to the high end of the Shore A scale, typically >80 Shore A.

Type A is generally used for soft and flexible polymer materials and type D is used for hard material.

Shore A is used for soft materials and Shore D for hard materials.