ASTM D1201-13

Standard Specification for Thermosetting Polyester Molding Compounds

ABSTRACT
This specification deals with the classification, requirements, and testing of compression molding, thermosetting, unsaturated polyester molding compounds. Covered here are the following types of polyester molding compounds: Type 1 - general-purpose granular materials with mineral fillers; Type 2 - general-purpose granular materials with mineral and cellulosic fillers, and having improved mechanical strength; Type 3 - general-purpose putty-type materials with mineral fillers; Type 4 - putty-type materials with mineral fillers and having superior electrical properties; Type 5 - high-impact glass-fiber filled materials in mat form, and has good electrical properties; and Type 6 - high-impact glass-fiber filled materials in putty form. Sampled specimens shall be tested and conform accordingly to material requirements such as specific gravity, flexural strength, modulus of elasticity in flexure, Izod impact resistance, arc resistance, and water absorption.
SCOPE
1.1 This specification covers compression molding, thermosetting, unsaturated polyester molding compounds as further defined in 3.1.  
1.2 The values stated in SI units are to be regarded as the standard. Note 1—The properties included in this specification are those required to identify the types of molding compounds covered. There may be other requirements necessary to identify particular characteristics. These will be added to the specification as their inclusion becomes generally desirable and the necessary test data and methods become available.Note 2—ISO 3672–1: 1979(E) is similar but not equivalent to this specification. Product classification and characterization are not equivalent.

General Information

• Status: Historical
• Publication Date: 31-Aug-2013
• ICS: 83.140.99 - Other rubber and plastics products
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.16 - Thermosetting Materials

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D1201 −13
Standard Specification for
1
Thermosetting Polyester Molding Compounds
This standard is issued under the fixed designation D1201; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 2.2 ISO Standard:
ISO 3672–1: 1979(E) Plastics—Unsaturated Polyester
1.1 This specification covers compression molding,
4
Resins—Part 1: Designation
thermosetting, unsaturated polyester molding compounds as
further defined in 3.1. 3. Classification
3.1 This specification covers the following types of polyes-
1.2 The values stated in SI units are to be regarded as the
ter molding compounds:
standard.
3.1.1 Type 1—General-purpose, granular material with min-
NOTE1—Thepropertiesincludedinthisspecificationarethoserequired
eral fillers.
to identify the types of molding compounds covered. There may be other
3.1.2 Type 2—General-purpose, granular material with min-
requirements necessary to identify particular characteristics.These will be
eral and cellulosic fillers, and having improved mechanical
added to the specification as their inclusion becomes generally desirable
strength.
and the necessary test data and methods become available.
3.1.3 Type 3—General-purpose, putty-type material with
NOTE 2—ISO 3672–1: 1979(E) is similar but not equivalent to this
mineral fillers.
specification. Product classification and characterization are not equiva-
3.1.4 Type 4—Putty-type material with mineral fillers hav-
lent.
ing superior electrical properties.
3.1.5 Type 5—High-impact,glass-fiberfilledmaterialinmat
2. Referenced Documents
form having good electrical properties.
2
2.1 ASTM Standards:
3.1.6 Type 6—High-impact, glass-fiber filled material in
D256 Test Methods for Determining the Izod Pendulum
putty form.
Impact Resistance of Plastics
4. General Requirements
D495 Test Method for High-Voltage, Low-Current, Dry Arc
Resistance of Solid Electrical Insulation (Withdrawn
4.1 The molding compounds shall be of uniform
3
2013)
composition, so compounded as to conform to the require-
D570 Test Method for Water Absorption of Plastics ments prescribed in this specification.
D618 Practice for Conditioning Plastics for Testing
4.2 The apparent density, bulk factor, particle size, physical
D790 Test Methods for Flexural Properties of Unreinforced
form, and color of the compound shall be as agreed upon
and Reinforced Plastics and Electrical Insulating Materi-
between the purchaser and supplier.
als
NOTE 3—The terms “apparent density,” “bulk factor,” and “particle
D792 Test Methods for Density and Specific Gravity (Rela-
size” cannot be used in the same sense with putty-type and glass-filled
tive Density) of Plastics by Displacement
materials as with granular materials.
D3892 Practice for Packaging/Packing of Plastics
5. Detail Requirements
5.1 Test specimens, molded by compression under condi-
tions specified by the manufacturer, shall conform to the
1
This specification is under the jurisdiction of ASTM Committee D20 on
requirements prescribed in Table 1.
Plastics and is the direct responsibility of Subcommittee D20.16 on Thermosetting
Materials.
6. Sampling
Current edition approved Sept. 1, 2013. Published September 2013. Originally
approved in 1952. Last previous edition approved in 2012 as D1201 - 99(2012).
6.1 Abatchofmoldingcompoundshallbeconsideredaunit
DOI: 10.1520/D1201-13.
2
of manufacture and may consist of a blend of two or more
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
production runs of the same material.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3
4
The last approved version of this historical standard is referenced on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
www.astm.org. 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D1201−13
TABLE 1 Detail Requirements for Compression-Molded Test Specimens
Type 1 Type 2 Type 3 Type 4 Type 5 Type 6
Specific gravity, 23/23°C:
min 2.18 1.6 1.7 1.9 1.95 1.75
max 2.28 1.9 1.9 2.1 2.10 1.90
Flexural strength, min:
MPa 51.7 65.5 51.7 51.7 82.7 82.7
Modulus of elasticity in flexure, min:
MPa 13 800 8 960 8 960 12 400 13 800 11 000
Impact resistance (Izod), min, J/m of notch . . . . 320(6) 320(6)
Arc resistance, min, s 175 125 125 175 130 75
Water absorption
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D1201 − 99 (Reapproved 2012) D1201 − 13
Standard Specification for
1
Thermosetting Polyester Molding Compounds
This standard is issued under the fixed designation D1201; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This specification covers compression molding, thermosetting, unsaturated polyester molding compounds as further defined
in 3.1.
1.2 The values stated in SI units are to be regarded as the standard.
NOTE 1—The properties included in this specification are those required to identify the types of molding compounds covered. There may be other
requirements necessary to identify particular characteristics. These will be added to the specification as their inclusion becomes generally desirable and
the necessary test data and methods become available.
NOTE 2—ISO 3672–1: 1979(E) is similar but not equivalent to this specification. Product classification and characterization are not equivalent.
2. Referenced Documents
2
2.1 ASTM Standards:
D256 Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics
3
D495 Test Method for High-Voltage, Low-Current, Dry Arc Resistance of Solid Electrical Insulation (Withdrawn 2013)
D570 Test Method for Water Absorption of Plastics
D618 Practice for Conditioning Plastics for Testing
D790 Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials
D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D3892 Practice for Packaging/Packing of Plastics
2.2 ISO Standard:
4
ISO 3672–1: 1979(E) Plastics—Unsaturated Polyester Resins—Part 1: Designation
3. Classification
3.1 This specification covers the following types of polyester molding compounds:
3.1.1 Type 1—General-purpose, granular material with mineral fillers.
3.1.2 Type 2—General-purpose, granular material with mineral and cellulosic fillers, and having improved mechanical strength.
3.1.3 Type 3—General-purpose, putty-type material with mineral fillers.
3.1.4 Type 4—Putty-type material with mineral fillers having superior electrical properties.
3.1.5 Type 5—High-impact, glass-fiber filled material in mat form. It has form having good electrical properties.
3.1.6 Type 6—High-impact, glass-fiber filled material in putty form.
4. General Requirements
4.1 The molding compounds shall be of uniform composition, so compounded as to conform to the requirements prescribed in
this specification.
4.2 The apparent density, bulk factor, particle size, physical form, and color of the compound shall be as agreed upon between
the purchaser and supplier.
NOTE 3—The terms “apparent density,” “bulk factor,” and “particle size” cannot be used in the same sense with putty-type and glass-filled materials
as with granular materials.
1
This specification is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.16 on Thermosetting Materials.
Current edition approved Dec. 1, 2012Sept. 1, 2013. Published December 2012September 2013. Originally approved in 1952. Last previous edition approved in 20042012
as D1201 - 99(2004).(2012). DOI: 10.1520/D1201-99R12.10.1520/D1201-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
4
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D1201 − 13
5. Detail Requirements
5.1 Test specimens, molded by compression under conditions specified by the manufacturer, shall conform to the requirements
prescribed in Table 1.
6. Sampling
6.1 A batch of molding compound shall be considered a unit of manufacture and may consist of a blend of two or more
production runs of the same material.
6.2 Adequate statistical sampling shall be used.
7. Test Methods
7.1 The properties
...