ASTM D4029

This specification covers finished fabrics woven from "E" electrical glass fiber yarns that are intended as a reinforcing material in laminated plastics for structural use. This specification can also be applied to fabrics made of other glass types. This specification permits the application of sizing materials to the glass fiber yarn during manufacture that helps facilitate weaving. These organic materials are typically removed from the greige gabric and replaced with a finish that is compatible with a specified resin matrix. The materials shall meet the required fabric count, yarn designations, yarn number, filament diameter, strand construction, twist direction, twist level, fabric weave type, mass per unit area, thickness, breaking strength, width, length, ignition loss, finish level, and appearance.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 This specification covers finished fabrics woven from “E” electrical glass fiber yarns that are intended as a reinforcing material in laminated plastics for structural use. This specification can also be applied to fabrics made of other glass types as agreed upon between the purchaser and the supplier.

1.2 This specification specifies the terminology, definitions, general requirements, and physical requirements for finished woven glass fabrics This specification permits the application of sizing materials to the glass fiber yarn during manufacture that helps facilitate weaving. These organic materials are typically removed from the greige fabric and replaced with a finish that is compatible with the resin matrix specified in the contracting document

Note 1—Sizing materials on glass fiber yarns, in most cases, are removed by various cleaning procedures as a first stage in preparing a finished fabric. When these yarn sizing materials are removed during a cleaning procedure they need not be compatible with the subsequent resin matrix.

1.3 This specification shows values in both SI units and in inch-pound units. “SI units” is the technically correct name for the system of metric units known as the International System of Units.“ Inch-pound units” is the technically correct name for the customary units used in the United States. The values in SI units are provided as information only; the values stated in inch-pound units are to be regarded as standard.

1.4 This specification is one of a series to provide a substitute for Military Specifications: MIL-Y-1140 Yarn, Cord, Sleeving, Cloth, and Tape-Glass; and MIL-C-9084 Cloth, Glass Finished for Resin Laminates.

1.5 Additional ASTM specifications in this series have been drafted and appear in current editions of the Annual Book of ASTM Standards. These include greige glass fabrics, glass tapes, glass sleevings, glass cords, glass sewing threads, and finished laminates made from finished glass fabrics.

1.6 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.

2. Referenced Documents

ANSI Standard
ANSI/ASQCZ1.4 Sampling Procedures for Inspection by Attributes
ASTM Standards
D1059 Test Method for Yarn Number Based on Short-Length Specimens
D123 Terminology Relating to Textiles
D1423 Test Method for Twist in Yarns by Direct-Counting
D1776 Practice for Conditioning and Testing Textiles
D1777 Test Method for Thickness of Textile Materials
D2408 Test Method for Finish Content of Woven Glass Fabric, Cleaned and After-Finished with Amino-Silane Type Finishes, for Plastic Laminates
D2409 Test Method for Finish Content of Woven Glass Fabric, Cleaned and After-Finished with Vinyl-Silane Type Finishes, for Plastic Laminates
D2410 Test Method for Finish Content of Woven Glass Fabric, Cleaned and After-Finished with Chrome Complexes, for Plastic Laminates
D2660 Test Method for Finish Content of Woven Glass Fabric, Cleaned and After-Finished with Acrylic-Silane Type Finishes, for Plastic Laminates
D3098 Test Method for Finish Content of Woven Glass Fabric, Cleaned and After-Finished with Epoxy--Functional Silane-Type Finishes for Plastic Laminates
D3773 Test Methods for Length of Woven Fabric
D3774 Test Method for Width of Textile Fabric
D3775 Test Method for Warp (End) and Filling (Pick) Count of Woven Fabrics
D3776 Test Methods for Mass Per Unit Area (Weight) of Fabric
D4963 Test Method for Ignition Loss of Glass Strands and Fabrics
D5035 Test Method for Breaking Force and Elongation of Textile Fabrics (Strip Method)
D578 Specification for Glass Fiber Strands
D7018 Terminology Relating to Glass Fiber and Its Products
Textile Institute Documents
WovenClothConstruction
Military Standard and Specifications
MIL-C-9084C Cloth, Glass Finished for Resin Laminates

Index Terms

appearance; construction; fabric weave; glass fabrics; laminates; organic content; plastics; twist; yarn number; yarns; Appearance of textile materials/applications; Construction--textile fabrics/fibers; Fabric weave; Glass--specifications; Glass-fiber-reinforced (GRP) plastics--specifications; Laminates (plastic); Organic matter content--textiles; Plastics--textile applications; Textile fabrics/fibers--specifications; Twist--textiles; Woven glass (for plastic laminates); Yarn number; Yarns

Citing ASTM Standards

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