ASTM C 647 : 2019 : R2025
Current
The latest, up-to-date edition.
Standard Guide to Properties and Tests of Mastics and Coating Finishes for Thermal Insulation
English
01-09-2025
| Committee |
C 16
|
| DocumentType |
Guide
|
| Pages |
6
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Current
|
| Supersedes |
1.1This guide identifies properties of mastics and coating finishes characterizing their performance as finishes for thermal insulation.
1.2These properties relate to application and service. Each property is defined, and its significance and suggested test methods are described.
1.3The properties appear in the following order in this guide.
| Paragraph | |
| Application Properties | 6 |
| Consistency | 6.1 |
| Coverage | 6.2 |
| Build | 6.3 |
| Wet Flammability | 6.4 |
| Toxicity | 6.5 |
| Temperature and Humidity Range | 6.6 |
| Surface Wetting and Adhesion | 6.7 |
| Gap Filling and Bridging | 6.8 |
| Sizing and Sealing | 6.9 |
| Corrosion or Solvent Attack | 6.10 |
| Drying Time and Curing Time | 6.11 |
| Shrinkage | 6.12 |
| Storage Stability | 6.13 |
| Freeze-Thaw Stability | 6.14 |
| Service Properties | 7 |
| Specimen Preparation | 7.1 |
| Outdoor Durability | 7.2 |
| Environmental Resistance | 7.3 |
| Temperature Limits | 7.3.1 |
| Chemicals and Water Resistance | 7.3.2 |
| Mold and Mildew Resistance | 7.3.3 |
| Surface Flammability | 7.4 |
| Water-Vapor Transmission Rate | 7.5 |
| Adhesion | 7.6 |
| Damage Resistance | 7.7 |
| Impact Resistance | 7.7.1 |
| Abrasion Resistance | 7.7.2 |
| Stress Resistance | 7.8 |
| Flexure | 7.8.1 |
| Elongation | 7.8.2 |
| Color | 7.9 |
| Odor | 7.10 |
| Other Properties | 8 |
1.4The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.5This 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.
| ASTM C 755 : 2025 | Standard Guide for Selection of Water Vapor Retarders for Thermal Insulation |
| ASTM C 419 : 2020 : R2025 | Standard Practice for Making and Curing Test Specimens of Mastic Thermal Insulation Coatings |
| ASTM F 1249 : 2025 | Standard Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting Using a Modulated Infrared Sensor |
| ASTM E 84 : 2024 | Standard Test Method for Surface Burning Characteristics of Building Materials |
| ASTM E 84 : 2025 | Standard Test Method for Surface Burning Characteristics of Building Materials |
| ASTM F 1249 : 2020 | Standard Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting Using a Modulated Infrared Sensor |
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