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Properties of Thermoplastic & Thermoset Compounds

Material Resistance Properties and Understanding the Abbreviations

It is essential to understand the abbreviations used to describe the levels of resistance in common thermoplastic and thermoset compounds. These abbreviations provide a quick reference for evaluating the suitability of each material for various environmental chemicals, applications, and conditions.

Abbreviations and Their Meanings:

  • E (Excellent): The material shows outstanding resistance to the specified substance or condition. It is highly suitable for applications where exposure is prolonged.
  • G (Good): The material offers good resistance to the substance or condition, suitable for moderate exposure levels.
  • F (Fair): The material provides fair resistance, making it appropriate for limited or infrequent exposure.
  • P (Poor): The material has poor resistance and is generally unsuitable for any exposure to the specified substance or condition.
  • O (Outstanding): The material excels in resistance beyond what is considered "excellent," providing superior performance in extreme conditions.
  • G-E (Good-Excellent): The material's resistance ranges between good and excellent, depending on specific conditions or concentrations.
  • F-G (Fair-Good): The material's resistance falls between fair and good, suitable for low to moderate exposure.
  • P-F (Poor-Fair): The material's resistance is between poor and fair, making it less suitable for applications with high exposure levels.
  • E-O (Excellent-Outstanding): The material's resistance is between excellent and outstanding, providing robust performance in challenging environments.
  • P-G (Poor-Good): The material's resistance may vary significantly based on specific conditions, requiring careful consideration before use.
  • These abbreviations help provide a quick and clear way to assess the material's compatibility with specific environments and applications. Refer to the tables below to see how these ratings apply to the various thermoplastic and thermoset compounds:

    Properties of Common Thermoplastic Compounds

    Resistant To PVC LD/PE HD/PE Polypropylene Polyurethane Nylon PTFE
    Abrasion F-G F-G E F-G O E G-E
    Acid G-E G-E G-E E F P-F E
    Alcohol G-E E E E P P E
    Alkali G-E G-E G-E E F E E
    Benzol, Toluol P-F P P P-F P G E
    Degreaser Solvents P-F P P P P G E
    Electrical F-G E E E P-F P-F E
    Flame E P P P P P O
    Gasoline/Kerosene P P-F P-F P-F F-G G E
    Heat G-E G E E G E O
    Low Temperature Flexibility P-G G-E E P G G O
    Nuclear Radiation P-F G G F G F-G P-F
    Oil F-G G-E G-E G E E O
    Oxidation E E E E E E O
    Ozone E E E E E E E
    Water E E E E P P-F E
    Weather/Sun G-E E E E F-G E O

    Properties of Common Thermoset Compounds

    Resistant To SBR Neoprene CSPE NBR EPR Silicone XLP
    Abrasion G-E G-E G G-E G F G-E
    Acid F-G G E G G-E F-G E
    Alcohol F F G E P G E
    Alkali F-G G E F-G G-E F-G E
    Benzol, Toluol P P-F F G F P G
    Degreaser Solvents P P P-F P P P-G G
    Electrical E F G P E O E-O
    Flame P G G P P F-G E
    Gasoline/Kerosene P G F E P P-F G
    Heat F-G G E G E O G
    Low Temperature Flexibility F-G F-G F F G-E O G
    Nuclear Radiation F-G F-G G F-G G E E
    Oil P G G G-E F F-G G-E
    Oxidation F G E F G E E
    Ozone P G E P E O E
    Water G-E G G-E G-E G-E G-E G-E
    Weather/Sun F G E F-G E O G-E

    Having an understanding of the resistance properties of thermoplastic and thermoset materials can help with selecting the right materials for specific applications. Choosing the correct compound based on the electrical and thermal properties can enhance the performance, longevity, and safety of your products and projects.

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