Hardness is a common performance parameter index in silicone rubber materials. To help you evaluate hardness more clearly, some reference examples of Shore A and Shore D hardness are listed below.
| Shore A rated examples | Shore D rated examples | ||
|---|---|---|---|
| 20 Shore A | Rubber bands | 40 Shore D | Book Cover |
| 30 Shore A | Mouse Pad | 50 Shore D | Solid truck tyres |
| 40 Shore A | Silicone Pacifier | 60 Shore D | Golf Ball |
| 50 Shore A | Rubber stamps | 70 Shore D | Wooden Ruler |
| 55 Shore A | Door seals and Pencil erasers | 75 Shore D | Hard hat (typically HDPE) |
| 60 Shore A | Tire Tread | 80 Shore D | Cast urethane plastic |
| 70 Shore A | Shoe Sole | 90 Shore D | Bone |
| 75 Shore A | Abrasive handling pads | ||
| 80 Shore A | Leather Belt | ||
| 85 Shore A | Tap washers | ||
| 90 Shore A | Phone cord | ||
| 100 Shore A | Ebonite rubber | ||
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