ASTM D1187/D1187M-97(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.