Durometer Range Suggestions And Physical Considerations
There are times when researching for a project, you need some qualifying information to get you started. Below, we have included a chart with suggested durometer ranges for various applications. In conjunction with that, we have listed physical properties that you should consider for each use.
Suggested Durometer Ranges
Index of Physical Considerations
- A: Tear Resistance
- B: Compression Set
- C: Rebound (Resilience)
- D: Abrasion Resistance
- E: Load Bearing Ability
- F: Chemical/Water Resistance
- G: Heat/Cold Resistance
- H: Frictional Properties
- I: Ability To Handle Dynamic Forces
- J: Shock Absorption
Application | Shore "A" | Shore "D" | Physical Considerations |
Bumpers | 50A - 80A | B,C,I,J | |
Bushings, Cams & Bearings | 90A | 50D - 70D | B,E,F,G,H,I |
Check Valves | 60A - 90A | B,C,F,G | |
Chute & Hopper Liners | 60A - 90A | 50D | A,D,F,H |
Clamps | 60A - 90A | B,E,G,H | |
Cutting Board Surfaces | 90A | 50D - 70D | A,C,I |
Drive Rollers | 50A - 90A | D,E,F,G,H,I | |
Flexible Couplings | 50A - 90A | A,E,G,I,J | |
Gaskets | 50A - 90A | 50D | B,F,G |
Gears | 90A | 50D - 70D | A,D,E,F,G,I |
Light Drive Belts | 60A - 90A | 50D | A,D,F,G,H |
Mallet Heads | 90A | 50D - 70D | A,C,J |
Metal Forming Pads | 70A - 90A | 50D | A,K |
Mounts | 50A - 90A | B,E,G,J | |
Printing Rollers | 20A - 50A | C,F | |
Pulley/Sheave Liners | 60A - 90A | 50D | D,G,H,I |
Pump Impellers | 90A | 50D - 70D | D,F,G |
Scrapper Blades | 60A - 90A | 50D - 60D | A,D,F,G,H |
Seals | 50A - 90A | 50D | B,F,G |
Stripper Springs | 80A - 90A | 50D | C,F,H,J |
Tires & Wheels | 60A - 90A | 50D - 60D | B,C,D,E,H,I |
Durometer Reference Calculator

For reference, this hardness is as soft as a Gel Shoe Insole
For reference, this hardness is as soft as a Rubber Band
For reference, this hardness is as soft as a Pencil Eraser
For reference, this hardness is as soft as a Tire Tread
For reference, this hardness is as soft as a Shopping Cart Wheel
For reference, this hardness is as soft as a Hard Hat
TABLETOP VIDEO: Durometer Explained
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