ASTM D1187/D1187M-97(2024)

Standard Specification for Asphalt-Base Emulsions for Use as Protective Coatings for Metal

ABSTRACT
This specification establishes the manufacture, testing, and performance requirements of two types of asphalt-based emulsions for use in a relatively thick film as a protective coating for metal surfaces. Type I are quick-setting emulsified asphalt suitable for continuous exposure to water within a few days after application and drying. Type II, on the other hand, are emulsified asphalt suitable for continuous exposure to the weather, only after application and drying. Upon being sampled appropriately, the materials shall conform to composition requirements as to density, residue by evaporation, nonvolatile matter soluble in trichloroethylene, and ash and water content. They shall also adhere to performance requirements as to uniformity, consistency, stability, wet flow, firm set, heat test, flexibility, resistance to water, and loss of adhesion.
SCOPE
1.1 This specification covers emulsified asphalt suitable for application in a relatively thick film as a protective coating for metal surfaces.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the 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: 30-Apr-2024
• ICS: 87.040 - Paints and varnishes
• Technical Committee: D08 - Roofing and Waterproofing
• Drafting Committee: D08.09 - Liquid Applied Coatings for Roofing and Asphaltic Concrete Pavement

Relations

• Replaces: ASTM D1187/D1187M-97(2018) - Standard Specification for Asphalt-Base Emulsions for Use as Protective Coatings for Metal
• Effective Date: 01-May-2024

Overview

ASTM D1187/D1187M-97(2024) sets the standard specification for asphalt-base emulsions intended for use as protective coatings for metal surfaces. Developed by ASTM International, this standard establishes key requirements for the manufacture, testing, composition, and performance of emulsified asphalts that form relatively thick films. The specification targets applications demanding durable, reliable protection from environmental factors such as water and weather exposure.

This standard is widely referenced in coating projects aiming to extend the life of metal structures, pipes, tanks, and other industrial or architectural metal components, especially where cost-effective, quick-setting, or weather-resistant surface protection is required.

Key Topics

• Types of Emulsions:

  • Type I: Quick-setting asphalt emulsions suitable for continuous water exposure within a few days after application and drying.
  • Type II: Emulsified asphalts designed for continuous weather exposure, effective after full application and drying.

• Material and Composition Requirements:

  • Consists of asphalt, water, and approved emulsifying agents.
  • Must meet specific density, residue, nonvolatile matter, ash, and water content parameters.

• Performance Criteria:

  • Uniformity: Emulsions must remain homogeneous after storage.
  • Consistency: Must allow easy application by brush, mop, or trowel to vertical metal surfaces at specified temperatures.
  • Stability: No coagulation during or after mixing with cement.
  • Flexibility: Coatings must not crack, flake, or lose adhesion when bent.
  • Resistance: Coatings should not blister or re-emulsify under water; loss of adhesion not permitted (for Type I).

• Testing and Sampling:

  • Material must be sampled and tested according to referenced ASTM procedures to confirm compliance.
  • Inspection and rejection protocols are specified to ensure product quality.

• Packaging and Marking:

  • Product containers must be clearly labeled with manufacturer details, type of emulsion, lot number, and a statement that it conforms to ASTM D1187/D1187M.

Applications

Protective asphalt-base emulsions as specified in ASTM D1187/D1187M-97(2024) provide essential long-term protection for metal surfaces, making them valuable in numerous industrial and commercial settings, including:

• Metal Roofs and Structures: Offering a durable barrier against corrosion and water ingress.
• Pipelines and Storage Tanks: Applying thick asphalt-based films to provide resistance to moisture, chemicals, and atmospheric conditions.
• Industrial Equipment: Coatings for machinery or components exposed to harsh environmental factors.
• Infrastructure Projects: Suitable for use in bridges, pylons, and other metal frameworks that require robust protective systems.

Proper application of these asphalt emulsions helps prevent oxidation, extends asset lifespan, minimizes maintenance costs, and enhances overall safety and reliability.

Related Standards

For users and specifiers interested in asphalt-based and protective coatings, the following standards are commonly referenced alongside ASTM D1187/D1187M:

• ASTM D2939: Test Methods for Emulsified Bitumens Used as Protective Coatings (Withdrawn 2012).
• ASTM C150/C150M: Specification for Portland Cement, used as an additive in the testing protocols.
• Other ASTM Roofing and Waterproofing Standards: Explore related standards managed by ASTM Committee D08 for additional performance and material guidance.

Keywords: asphalt emulsion, protective coating, metal surfaces, ASTM D1187, corrosion protection, industrial metal coating, asphalt-based emulsion, weather-resistant coating

For the latest version and further details, refer to the ASTM International website.

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: D1187/D1187M − 97 (Reapproved 2024)
Standard Specification for
Asphalt-Base Emulsions for Use as Protective Coatings for
Metal
This standard is issued under the fixed designation D1187/D1187M; 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 4. Materials and Manufacture
1.1 This specification covers emulsified asphalt suitable for 4.1 Emulsified asphalt used as a protective coating for metal
application in a relatively thick film as a protective coating for shall consist of asphalt, water, and emulsifying agents.
metal surfaces.
5. Composition
1.2 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in
5.1 Emulsified asphalt complying with this specification
each system may not be exact equivalents; therefore, each shall conform to the requirements in Table 1.
system shall be used independently of the other. Combining
values from the two systems may result in nonconformance
6. Performance Requirements
with the standard.
6.1 Uniformity—The emulsion shall be homogeneous. After
1.3 This international standard was developed in accor-
a thoroughly stirred sample has been held at 10 °C [50 °F] in a
dance with internationally recognized principles on standard-
closed container for 48 h, there shall be no separation of water,
ization established in the Decision on Principles for the
coagulation of the asphalt base, settling, or packing in the
Development of International Standards, Guides and Recom-
container that cannot be overcome by moderate hand stirring.
mendations issued by the World Trade Organization Technical
6.2 Consistency—The emulsion shall be of a consistency
Barriers to Trade (TBT) Committee.
that will spread readily and permit application by brush, mop,
2 2
or trowel at the rate of 1.0 L/m [2.5 gal U.S./100 ft ] to
2. Referenced Documents
vertical metal surfaces at ambient temperatures above 10 °C
2.1 ASTM Standards:
[50 °F]. See Section 17 of Test Methods D2939.
C150/C150M Specification for Portland Cement
6.3 Stability—There shall be no coagulation during the
D2939 Test Methods for Emulsified Bitumens Used as
cement addition or at the conclusion of the 1 min mixing
Protective Coatings (Withdrawn 2012)
period.
6.4 The emulsion shall conform to the additional require-
3. Classification
ments prescribed in Table 2.
3.1 Type I—Quick-setting emulsified asphalt suitable for
continuous exposure to water within a few days after applica-
7. Sampling and Test Methods
tion and drying.
7.1 Sample the material and determine the properties enu-
3.2 Type II—Emulsified asphalt suitable for continuous
merated in this specification in accordance with Test Methods
exposure to the weather, only after application and drying.
D2939, except for stability and flexibility.
7.2 Stability:
7.2.1 Material—High-early-strength portland cement con-
This specification is under the jurisdiction of ASTM Committee D08 on
forming to the requirements for Type III of Specification
Roofing and Waterproofing and is under the direct responsibility of Subcommittee
D08.09 on Liquid Applied Coatings for Roofing and Asphaltic Concrete Pavement.
C150/C150M, and having a minimum specific surface area of
2 2
Current edition approved May 1, 2024. Published May 2024. Originally
1900 cm /g [133 556 in. /lb].
published in 1956. Last previous edition approved in 2018 as D1187/D1187M – 97
7.2.2 Procedure:
(2018). DOI: 10.1520/D1187_D1187M-97R24.
7.2.2.1 Place about 200 g of emulsion in a tared 500 mL
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
round-bottom porcelain dish, and weigh.
Standards volume information, refer to the standard’s Document Summary page on
7.2.2.2 Add 25 mass % portland cement based on the
the ASTM website.
weight of the emulsion, in small portions while stirring
The last approved version of this historical standard is referenced o
...