ASTM D962-81(2020)

Standard Specification for Aluminum Powder and Paste Pigments for Paints

ABSTRACT
This specification covers aluminum pigments in powder and paste forms for use in paints. The aluminum pigments are available in four types, as follows: Type I, leafing powder; Type II, leafing paste; Type III, nonleafing powder; and Type IV, nonleafing paste. Each type is grouped into three classes based on residue retained on a No. 325 sieve, as follows: Class A, fine; Class B, medium; and Class C, coarse. Materials shall be sampled, tested, and conform accordingly to composition of non-volatile matter, easily extracted fatty and oily matter (polishing lubricant), total impurities other than fatty and oily matter, coarse particles as total residue retained, and leafing ability.
SCOPE
1.1 This specification covers four types and three classes of aluminum pigments for use in paints.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 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.

General Information

• Status: Published
• Publication Date: 31-May-2020
• ICS: 77.120.10 - Aluminium and aluminium alloys
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.31 - Pigment Specifications

Relations

• Refers: ASTM D480-88(2020) - Standard Test Methods for Sampling and Testing of Flaked Aluminum Powders and Pastes
• Effective Date: 01-Jun-2020
• Referred By: ASTM F683-23 - Standard Practice for Selection and Application of Thermal Insulation for Piping and Machinery
• Effective Date: 01-Jun-2020

Standards Content (Sample)

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.
Designation:D962 −81 (Reapproved 2020)
Standard Specification for
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Aluminum Powder and Paste Pigments for Paints
This standard is issued under the fixed designation D962; 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 3.2.2 Class B, Medium—Maximum of 1.0 % retained on a
No. 325 (45-µm) sieve.
1.1 This specification covers four types and three classes of
3.2.3 Class C, Coarse—Maximum of 15 % retained on a
aluminum pigments for use in paints.
No. 325 (45-µm) sieve.
1.2 The values stated in SI units are to be regarded as
3.3 Type III—Nonleafing Aluminum Pigment Powder
standard. No other units of measurement are included in this
(Note):
standard.
3.3.1 Class A, Fine—Maximum of 1.5 % retained on a No.
1.3 This international standard was developed in accor-
325 (45-µm) sieve.
dance with internationally recognized principles on standard-
3.3.2 Class B, Medium—Maximum of 6.0 % retained on a
ization established in the Decision on Principles for the
No. 325 (45-µm) sieve.
Development of International Standards, Guides and Recom-
3.3.3 Class C, Coarse—Maximum of 20 % retained on a
mendations issued by the World Trade Organization Technical
No. 325 (45-µm) sieve.
Barriers to Trade (TBT) Committee.
3.4 Type IV—Nonleafing Aluminum Pigment Paste(Note1):
3.4.1 Class A, Fine—Maximum of 0.1 % retained on a No.
2. Referenced Documents
325 (45-µm) sieve.
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2.1 ASTM Standards:
3.4.2 Class B, Medium—Maximum of 1.0 % retained on a
D480 Test Methods for Sampling and Testing of Flaked
No. 325 (45-µm) sieve.
Aluminum Powders and Pastes
3.4.3 Class C, Coarse—Maximum of 11.0 % retained on a
E34 Test Methods for Chemical Analysis of Aluminum and
3 No. 325 (45-µm) sieve.
Aluminum-Base Alloys (Withdrawn 2017)
NOTE 1—The particle size characteristics of the Type 3 and Type 4
3. Classification pigments of the same class do not correspond with each other; in the case
of Types 1 and 2 they do.
3.1 Type I—Leafing Aluminum Pigment Powder:
3.1.1 Class A, Fine—Maximum of 0.1 % retained on a No.
4. Composition and Properties
325 (45-µm) sieve.
4.1 Aluminum Pigment Powder (Type 1, Leafing and Type 3,
3.1.2 Class B, Medium—Maximum of 1.5 % retained on a
Nonleafing)—The aluminum pigment powder shall consist of
No. 325 (45-µm) sieve.
commercially pure aluminum in the form of fine, polished
3.1.3 Class C, Coarse—Maximum of 20 % retained on a
flakes, and a suitable fatty lubricant. It shall contain no filler or
No. 325 (45-µm) sieve.
extender pigments.
3.2 Type II—Leafing Aluminum Pigment Paste:
4.2 Aluminum Pigment Paste (Type 2, Leafing and Type 4,
3.2.1 Class A, Fine—Maximum of 0.1 % retained on a No.
Nonleafing)—The aluminum pigment paste shall consist of
325 (45-µm) sieve.
commercially pure aluminum in the form of fine, polished
flakes, and a suitable fatty lubricant combined with a volatile
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thinner. It shall contain no filler or extender pigments.
This specification is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
4.3 The aluminum pigments, powder, and paste of both
Subcommittee D01.31 on Pigment Specifications.
leafing and nonleafing types shall conform to the requirements
Current edition approved June 1, 2020. Published June 2020. Originally
approved in 1948. Last previous edition approved in 2014 as D962 – 81 (2014).
given in Table 1.
DOI: 10.1520/D0962-81R20.
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4.4 The paint made from the powder or paste shall be
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
free-flowing and shall give a continuous coating at least equal
Standards volume information, refer to the standard’s Document Summary page on
in smoothness, luster, and general appearance to that of a
the ASTM website.
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reference sample mutually agreed upon by the purchaser and
The last approved version of this historical standard is referenced on
www.astm.org. the seller.
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D962−81 (2020)
TABLE 1 Requirements for Aluminum Pigments
Leafing Nonleafing
Type 1 Type 2 Type 3 Type 4
(Powder) (Paste) (Powder) (Paste)
Nonvolatile matter at 105 to 110°C, min, % 99 65 99 65
A
Easily extracted fatty and oily matter (polishing lubricant), max, % 4.0 3.0 4.0 3.0
A
Total impurities othe
...