ASTM D4745-11

    Standard Specification for Filled Compounds of Polytetrafluoroethylene (PTFE) Molding and Extrusion Materials


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    1. Scope

    1.1 This specification covers polytetrafluoroethylene (PTFE) filled molding compounds made with virgin PTFE resins defined in Specification D4894, as Types II and III.

    Note 1—This specification can be used as a model for other PTFE compounds having particulate fillers that can survive the sintering temperatures of PTFE as can those listed in this specification. This specification is restricted to virgin PTFE base resin for technical reasons. Recycled or reprocessed material cannot be processed successfully.

    Note 2—The properties measured on commercially fabricated parts may differ from the listed values for samples prepared by the procedures given in this specification, depending on part geometry and processing parameters.

    1.2 The values stated in SI units are to be regarded as standard.

    1.3 The following statement applies to the test method portion, Section 11, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. See Note 5 for a specific warning statement.

    Note 3—There is no known ISO equivalent to this standard.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement

    D883 Terminology Relating to Plastics

    D1600 Terminology for Abbreviated Terms Relating to Plastics

    D1708 Test Method for Tensile Properties of Plastics by Use of Microtensile Specimens

    D3892 Practice for Packaging/Packing of Plastics

    D4894 Specification for Polytetrafluoroethylene (PTFE) Granular Molding and Ram Extrusion Materials


    ICS Code

    ICS Number Code 83.140.99 (Other rubber and plastic products)

    UNSPSC Code

    UNSPSC Code


    Referencing This Standard
    Link Here
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    DOI: 10.1520/D4745-11

    Citation Format

    ASTM D4745-11, Standard Specification for Filled Compounds of Polytetrafluoroethylene (PTFE) Molding and Extrusion Materials, ASTM International, West Conshohocken, PA, 2011, www.astm.org

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