---
title: Pelmor® Laboratories Inc. - Elastomeric Chart
description: Pelmor® Laboratories, is a full service, vertically integrated, custom manufacturer of all-rubber and rubber-to-metal bonded, molded and extruded parts.
---

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# Elastomeric Chart

**Properties of Selected Elastomers**

| **ELASTOMER ABBREVIATIONS** |  |  |  |
| --- | --- | --- | --- |
| **NR** | Natural Rubber | **CR** | Polychloroprene (Neoprene) |
| **IIR** | Butyl | **NBR** | Nitrile (Buna-N, Hycar®) |
| **EPDM** | EPDM | **BR** | Polybutadiene (Taktene®) |
| **CO/ECO** | Epichlorohydrin (Hydrin®) | **IR** | Polyisoprene |
| **AEM** | Ethylene/acrylic (Vamac®) | **SBR** | SBR (Buna-S, GRS) |
| **FKM** | Fluoroelastomer (Viton®, Dyneon®, Aflas®) | **VMQ** | Silicone |
| **FVMQ** | Fluorosilicone | **AU/EU** | Urethane |
| **CSM** | Chlorosulfonated polyethylene (Hypalon®) | **FFKM** | Perfluoroelastomer |

| **RATINGS CODE** | **E** | Excellent | **G** | Good | **F** | Fair | **P** | Poor |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |

|   | **NR** | **IIR** | **EPDM** | **CO/ECO** | **AEM** | **FKM** | **FVMQ** | **CSM** | ** CR** | **NBR** | ** BR** | **IR** | ** SBR** | **VMQ** | **AU/EU** | **FFKM** |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| **HARDNESS RANGE (SHORE A)** | 30-95 | 35-80 | 30-90 | 40-90 | 40-90 | 60-90 | 60-90 | 40-90 | 25-95 | 30-90 | 40-80 | 30-95 | 40-90 | 20-85 | 45-100 | 65-95 |
| **TENSILE STRENGTH MAX PSI** | 4000 | 2500 | 3000 | 2500 | 2500 | 3000 | 2000 | 3000 | 3000 | 3000 | 2500 | 3500 | 3000 | 1500 | 8000 | 2000 |
| **ELONGATION MAX %** | 750 | 700 | 600 | 400 | 700 | 450 | 700 | 600 | 600 | 600 | 500 | 750 | 600 | 800 | 750 | 300 |
| **RESILIENCE** | E | P-F | G | F | F | F | G | F-G | G-E | F-G | E | E | G | F-G | G | G |
| **COMPRESSION SET** | G | F | G | F | G | G-E | G | F | F-G | G | F-G | G | G | G-E | G | G |
| **IMPERMEABILITY TO GASES** | F-G | E | F-G | E | F | E | G | G-E | G | G-E | F-G | F-G | F | F | P-F | E |
| **ABRASION RESISTANCE** | E | G | G-E | F-G | G | G | P | G-E | G-E | G | E | E | G-E | p | E | G |
| **OZONE RESISTANCE** | P | E | E | E | E | E | E | E | F-G | P | P | P | p | E | E | E |
| **HEAT RESISTANCE** | F | G | E | G-E | G-E | E | E | G | G | G | F | F | G | E | G | E |
| **LOW TEMPERATURE FLEXIBILITY** | G-E | F | E | G | P-F | F-G | E | F-G | F-G | F-G | G-E | G | G | E | G | F-G |
| **CHEMICAL RESISTANCE:** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| **OIL AND GASOLINE** | P | P | P | G-E | F | E | E | G | G | E | P | P | P | F | G | E |
| **ANIMAL AND VEGETABLE OILS** | P-F | G | F-G | G-E | G-E | E | E | F-G | G | E | P-F | P-F | P-F | F-G | F-G | E |
| **AROMATIC HYDROCARBONS** | P | P | P | G | P-F | E | E | F | F | G | P | P | P | P | P | E |

TRADEMARKS

| **Hydrin®** - Zeon Chemicals Inc **Aflas®** - Asahi Glass Company | **Hycar®** - B. F. Goodrich Company ** Taktene®** - Bayer Inc. |
| --- | --- |
| **Viton®, Vamac® and Hypalon®** are registered trademarks of DuPont Performance Elastomers. |  |
| **Fluorel®**, **Dyneon®** - are registered trademarks of Dyneon LLC, a 3 M Company. |  |

**Disclaimer:** The information printed herein is furnished free of charge and is based on technical data that Pelmor® Laboratories believes to be reliable. It is intended for use by persons having technical skill, at their own discretion and risk. While the information contained herein is believed to be correct, Pelmor® Laboratories makes no representation as to accuracy of it and assumes no liability in connection with any use of this information. Nothing contained herein is to be taken as a license to operate under or as a recommendation to infringe any patents.

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