ASTM D4969-17(2022)

Standard Specification for Polytetrafluoroethylene–(PTFE) Coated Glass Fabric

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STANDARD published on 1.5.2022

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The information about the standard:

Designation standards: ASTM D4969-17(2022)
Publication date standards: 1.5.2022
SKU: NS-1056625
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Coated fabrics

Annotation of standard text ASTM D4969-17(2022) :

This specification covers glass fabric impregnated, coated, and sintered on both sides with PTFE to a specified maximum nominal thickness. It does not pertain to structural fabric, single-sided PTFE coatings, or materials used for laminates. The PTFE-coated glass fabric is for electrical, chemical, and mechanical uses. The base material used in the manufacture of the products of this specification shall be a woven glass fabric. The glass fabric is impregnated or coated with polytetrafluoroethylene. When necessary, additives are used to aid the dispersion to achieve the required properties and performance of the final product. The glass fabric shall be tested for color, thickness, breaking strength, edge tear, conductivity, percent PTFE, smoothness, and porosity.

Keywords:

dispersion, fluorocarbon, fluoropolymers, polymer coating, polytetrafluoroethylene, PTFE, PTFE coated glass fabric,, ICS Number Code 59.080.40 (Coated fabrics)

Additional information

1. Scope

1.1?This specification covers glass fabric impregnated, coated, and sintered on both sides with PTFE to a nominal thickness of 0.318 mm (0.015 in.) or less.

1.2?The PTFE-coated glass fabric is for electrical, chemical, and mechanical uses.

1.3?The PTFE-coated glass fabric of this specification does not pertain to structural fabric, single-sided PTFE coatings, or materials used for laminates.

1.4?The values stated in SI units as detailed in IEEE/ASTM SI-10.

Note 1:?There is no ISO standard that covers information included in this specification. The dielectric test is mentioned in ISO 12086-2 and ISO 13000-1 and -2.

1.5?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

2. Referenced Documents

D149-25	Standard Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies
D257-14(2021)e1	Standard Test Methods for DC Resistance or Conductance of Insulating Materials (Includes all amendments and changes 5/6/2021).
D374-99	Standard Test Methods for Thickness of Solid Electrical Insulation
D579-09	Standard Specification for Greige Woven Glass Fabrics
D618-21	Standard Practice for Conditioning Plastics for Testing
D4441-20(2025)	Standard Specification for Aqueous Dispersions of Polytetrafluoroethylene
IEEE/ASTM SI-10	Standard for Use of the International System of Units (SI): The Modern Metric System
ISO 13000–1 and 2	Plastics--Polytetrafluoroethylene (PTFE) Semi-Finished Products
D751-19	Standard Test Methods for Coated Fabrics
D123-23	Standard Terminology Relating to Textiles
D737-18(2023)	Standard Test Method for Air Permeability of Textile Fabrics
D902-12	Standard Test Methods for Flexible Resin-Coated Glass Fabrics and Glass Fabric Tapes Used for Electrical Insulation (Withdrawn 2020)
D883-26	Standard Terminology Relating to Plastics
D3892-15(2020)	Standard Practice for Packaging/Packing of Plastics
D1424-25	Standard Test Method for Tearing Strength of Fabrics by Falling-Pendulum (Elmendorf-Type) Apparatus

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