|
Hardness Comparison Chart
Tread Material
|
Durometer
|
Scale
|
| Soft Tread Rubber
|
70-80
|
A
|
| Phenolics
|
145-150
|
R
|
| Polyurethane
|
90-100
|
A
|
| Soft Polyurethane
|
80-90
|
A
|
| Hard Polyurethane
|
70
|
D
|
| Rubber
|
65-75
|
A
|
| Aluminum Core/Rubber
|
70-80
|
A
|
| Softech
|
70
|
A
|
| Neoprene
|
65-75
|
A
|
| Pneumatic
|
55-60
|
A
|
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