The information below is intended to give a broad overview of the properties of a number of different rubbers. This is intended to aid in the selection of rubbers for particular service conditions. A guide of this sort is only intended as a first step in selection - mainly to eliminate materials which are obviously unsuitable. Beyond this, factors such as component size can have a major influence on properties such as oxidation resistance and oil resistance. Also, the properties of a vulcanized rubber can be significantly influenced by details of the compounding. Practical materials will have, in addition to the base polymer, fillers, anti-degradants, crosslinking agents, accelerators etc. All of these can have an influence on the physical and chemical stability of the finished material. In critical applications it is therefore advisable to give considerable thought, or take advice, on the formulation of the compound. As the potential for 'tailoring' compound to specific applications is essentially limitless, it is often advisable to carry out preliminary qualification tests to ensure that the compound chosen will perform as intended.
Trade names are given to assist in recognition, but the list is necessarily only partial, and is given in alphabetical order. Trade names are generally registered and/or copyright and are indicated by an asterisk after the name - see below.
Abbreviations used are those based on latest ISO recommendations.
The temperature ranges quoted are only a rough guide, because the temperature range possible will depend upon the particular application, and may depend on detailed differences between alternative versions of the same rubber. In some cases greater extremes of temperature can be tolerated than indicated below.
The information given below is given in good faith, but MERL can accept no responsibility for the information. Normal screening procedures should be operated before any material is selected for service.