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Rubber nature of the comparison table

Excellent Good Suitable Limited Poor

  NR IR SER BR IIR EPDM CR NBR PU CSM ACM ECO VAE SI SPM
Tensile Strength
Elongati  
Rebound Resistance
Tear Resistance
Abrasion Resistance
Impact Strength Resistance
Gas Impermeability Resistance
Oxygen Resistance
Ozone Resistance
Weathering Resistance
Flame Resistance
Heat Resistance
Low Temperature Resistance
Oil and Fuel Resistance
Animal and Vegetable Oil Resistance
Alcohol Resistance
Alkaline Resistance
Acid Resistance
Aliphatic-solvent Resistance                              
-Aliphatic
-Aromatic
Oxygenated-Solvent Resistance
Water Resistance


Rubber material temperature table
Suitable temperature
Specially formulated to reach the temperature range of



How to choose rubber materials

    Used in the selection of the rubber seal material, the need to consider several important indicators: Are as follows:

  • Consideration of the use of conditions
    1. Portfolio considerations
    2. Use of the chemical reaction may be to consider
    3. Life is very likely to consider the causes of the failure to review
    4. Lubrication degrees and the assembled components to consider
    5. Tolerance in consideration of

  • Testing needs into consideration and
    1. Define test
    2. The decision to confirm the demand for a sample of
    3. Set the Acceptable Standard
    4. The main sealing surface configuration

  • Choice of material specifications
    1. Decided to standardize the selection of materials, such as the U.S. ASTM, German DIN, Japanese JIS ... etc.
    2. With suppliers to discuss the definition of the choice of plastic materials

  • Cost considerations
    • On the types of plastic materials, avoid using high cost and utility of the plastic material does not match, resulting in finished product can not play sealing function, whether natural or synthetic rubber shall have the general characteristics of the rubber, such as elastic recovery followed by the compression resistance, tortuous resistance, and the squeezing of the liquid's resistance to gas permeability, each of the rubber elastomer are its unique performance, while the composition by rubber formulations can also be an impact on their performance. There are currently more than 20 kinds or more of the rubber elastomer, and is widely used in various types of material needs, while mixed-chain by a professional formula works for the design and mixed-chain, but also provides meet all the works, the role of making vulcanized rubber by heat converted into thermosetting plastic mixture of the expected state of cross-linking effect (Crosslink) to provide strength and elasticity of rubber molecular chain to the seals play a performance, so the designer and create a seal and plastic materials suppliers who decide to use the materials, discuss with each other is very important.


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