ASTM C1367-19(2023)

Standard Test Method for Dead Load Resistance of a Sealant in Elevated Temperatures

SIGNIFICANCE AND USE
5.1 Sealants are generally subjected to stresses in end-use applications. This test method measures the heat resistance of sealants when subjected to dead load shear stresses while under heat.
SCOPE
1.1 This test method covers a laboratory procedure for determining the heat resistance of sealants. This test method is conducted under dead load in a shear mode. This test method was previously written to include only hot applied sealants.  
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information purposes only.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 The subcommittee with jurisdiction of this standard is not aware of any similar or equivalent ISO standard.  
1.5 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-2023
• ICS: 83.140.50 - Seals
• Technical Committee: C24 - Building Seals and Sealants
• Drafting Committee: C24.30 - Adhesion

Relations

• Refers: ASTM C1375-00(2020) - Standard Guide for Substrates Used in Testing Building Seals and Sealants
• Effective Date: 01-Jan-2020
• Refers: ASTM C717-19 - Standard Terminology of Building Seals and Sealants
• Effective Date: 01-Mar-2019
• Refers: ASTM C717-18 - Standard Terminology of Building Seals and Sealants
• Effective Date: 01-Mar-2018
• Refers: ASTM C717-17a - Standard Terminology of Building Seals and Sealants
• Effective Date: 01-Nov-2017
• Refers: ASTM C717-17 - Standard Terminology of Building Seals and Sealants
• Effective Date: 01-Jan-2017
• Refers: ASTM C717-16a - Standard Terminology of Building Seals and Sealants
• Effective Date: 15-Nov-2016
• Refers: ASTM C717-16 - Standard Terminology of Building Seals and Sealants
• Effective Date: 01-Sep-2016
• Refers: ASTM C717-14a - Standard Terminology of Building Seals and Sealants
• Effective Date: 01-May-2014
• Refers: ASTM C717-14 - Standard Terminology of Building Seals and Sealants
• Effective Date: 01-Feb-2014
• Refers: ASTM C1375-00(2014) - Standard Guide for Substrates Used in Testing Building Seals and Sealants
• Effective Date: 01-Jan-2014
• Refers: ASTM C717-13 - Standard Terminology of Building Seals and Sealants
• Effective Date: 01-Nov-2013
• Refers: ASTM C717-12b - Standard Terminology of Building Seals and Sealants
• Effective Date: 01-Dec-2012
• Refers: ASTM C717-12a - Standard Terminology of Building Seals and Sealants
• Effective Date: 01-May-2012
• Refers: ASTM C717-12 - Standard Terminology of Building Seals and Sealants
• Effective Date: 15-Jan-2012
• Refers: ASTM C1036-11 - Standard Specification for Flat Glass
• Effective Date: 01-Oct-2011

Overview

ASTM C1367-19(2023): Standard Test Method for Dead Load Resistance of a Sealant in Elevated Temperatures provides a laboratory procedure for measuring the heat resistance of sealants when subjected to shear stresses under a sustained (dead) load at elevated temperatures. Developed by ASTM International, this standard addresses the behavior of sealants in conditions that closely replicate real-world thermal stress, helping manufacturers, specifiers, and testing laboratories ensure the durability and reliability of sealant products.

This method plays a critical role in assessing sealant performance for applications where continuous stress and elevated temperatures are expected. It outlines procedures using standardized substrates and conditions for objective, reproducible results.

Key Topics

• Heat resistance of sealants: Assesses the performance of sealants under combined shear and thermal stress.
• Dead load shear testing: Evaluates how long a sealant can withstand a specified constant load at elevated temperature before failure.
• Substrate preparation: Specifies the cleaning and conditioning of standard substrates (glass and aluminum) before sealant application.
• Test procedures:
  • Preparation of test specimens using defined methods.
  • Application of a constant shear load via weighting.
  • Monitoring and recording of time to failure and mode of failure (adhesive or cohesive).
• Result reporting: Requirements for documenting test conditions, sealant details, equipment, applied loads, type and percentage of failure, and any substrate deformation.
• Units and safety: All measurements are in SI units; users are responsible for enforcing appropriate safety protocols.
• Reproducibility and precision: Emphasizes repeatability within laboratories and comparability between different test sites.

Applications

• Product specification and selection: Manufacturers and specifiers use ASTM C1367 to qualify sealants for applications where elevated temperatures and sustained loads are expected, such as facades, curtain walls, glazing, expansion joints, and roofing systems.
• Quality control and validation: Testing laboratories employ this method to verify the consistency and quality of sealant batches before release, and to benchmark products during development.
• Comparative product evaluation: Enables side-by-side differentiation of sealants based on time to failure under heat and load, aiding in performance-based procurement.
• Conformance with building codes and project specifications: Offers a recognized means to demonstrate compliance for projects requiring assurance of long-term durability in elevated service conditions.

Related Standards

• ASTM C717 - Terminology of Building Seals and Sealants: Provides definitions for terminology used in ASTM C1367.
• ASTM C1036 - Specification for Flat Glass: Governs the quality and properties of glass substrates used in testing.
• ASTM B209 - Specification for Aluminum and Aluminum-Alloy Sheet and Plate: Ensures standardized aluminum components.
• ASTM C1375 - Guide for Substrates Used in Testing Building Seals and Sealants: Offers guidance on substrate selection and preparation.
• Note: Currently, there are no known equivalent ISO or international standards for this specific dead load and heat resistance test.

Practical Value

ASTM C1367-19(2023) is an essential tool for validating sealant performance under realistic, challenging conditions. By accurately simulating combined mechanical and thermal loads, it ensures that only sealants with proven durability are selected for critical building envelope and industrial applications. Adhering to this standard helps reduce premature sealant failure, lowers long-term maintenance costs, and ensures safer, longer-lasting construction.

Keywords: dead load resistance, sealant testing, elevated temperatures, heat resistance, ASTM C1367, shear mode, building and construction sealants, laboratory testing, product durability.

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: C1367 − 19 (Reapproved 2023)
Standard Test Method for
Dead Load Resistance of a Sealant in Elevated
Temperatures
This standard is issued under the fixed designation C1367; 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. Terminology
3.1 Definitions—Definitions of the following terms used in
1.1 This test method covers a laboratory procedure for
this test method are found in Terminology C717, 4.1: adhesive
determining the heat resistance of sealants. This test method is
failure, cohesive failure, hot-applied sealant, sealant, standard
conducted under dead load in a shear mode. This test method
conditions, and substrate.
was previously written to include only hot applied sealants.
3.2 Definitions of Terms Specific to This Standard—
1.2 The values stated in SI units are to be regarded as the
Definitions of the following terms used in this test method are
standard. The values given in parentheses are provided for
found in Terminology C717, 4.2: applicator and specified
information purposes only.
temperature.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Summary of Test Method
responsibility of the user of this standard to establish appro-
4.1 The sealant is placed between glass and aluminum
priate safety, health, and environmental practices and deter-
substrates. The specimen conditioning time is recorded. The
mine the applicability of regulatory limitations prior to use.
specimen is heated in shear mode with a weight suspended
1.4 The subcommittee with jurisdiction of this standard is
from the specimen. The weight applied and the time that it
not aware of any similar or equivalent ISO standard.
takes for the specimen to fail is recorded.
1.5 This international standard was developed in accor-
5. Significance and Use
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
5.1 Sealants are generally subjected to stresses in end-use
Development of International Standards, Guides and Recom-
applications. This test method measures the heat resistance of
mendations issued by the World Trade Organization Technical
sealants when subjected to dead load shear stresses while under
Barriers to Trade (TBT) Committee.
heat.
2. Referenced Documents
6. Apparatus
2.1 ASTM Standards: 6.1 Sealant Applicator or Oven, capable of maintaining the
B209 Specification for Aluminum and Aluminum-Alloy sealant within 62.8 °C (65 °F) of the specified temperature.
Sheet and Plate (Metric) B0209_B0209M
6.2 Substrates:
C717 Terminology of Building Seals and Sealants
6.2.1 Annealed glass that is 25.4 mm wide by 76.2 mm long
C1036 Specification for Flat Glass
and 6.35 mm thick (1 in. by 3 in. by 0.25 in.). (see Specification
C1375 Guide for Substrates Used in Testing Building Seals
C1036.)
and Sealants
6.2.2 Aluminum alloy 5052-H32 that is 25.4 mm wide by
76.2 mm long and 0.508 mm thick (1 in. by 3 in. by 0.020 in.).
(see Specification B209.)
This test method is under the jurisdiction of ASTM Committee C24 on Building 6.2.3 Other substrates may be used when specified (Fig. 1).
Seals and Sealants and is the direct responsibility of Subcommittee C24.30 on
6.3 Template, to provide 3.28 mm ( ⁄8 in.) sealant thickness
Adhesion.
Current edition approved May 1, 2023. Published May 2023. Originally (Fig. 2).
approved in 1997. Last previous edition approved in 2019 as C1367 – 19. DOI:
6.4 Hot Knife or Spatula.
10.1520/C1367-19R23.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.5 Test Oven, capable of maintaining specified temperature
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
within 62.8 °C (65 °F). This oven must contain some appa-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. ratus for suspending the specimens in shear mode during
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C1367 − 19 (2023)
FIG. 1 Assembly of Test Sealant on Substrates
7. Sampling
7.1 Sealant shall be free of external surface contaminants
such as talc, oil, dust, and moisture. Handling of the sealant
surfaces in contact with the substrate shall be minimized.
7.2 Condition not less than 250 g of sealant (and sufficient
portion of other components, if a multicomponent) in a closed
container for 24 h at standard conditions.
8. Test Specimens
8.1 Prepare five test specimens from the bulk sample by
using the applicator or oven method.
8.1.1 Applicator Method:
8.1.1.1 Clean the glass and aluminum surfaces according to
the procedures set forth in Guide C1375.
8.1.1.2 Using the appropriate die or nozzle, apply a
25.4 mm by 25.4 mm (1 in. by 1 in.) layer of sealant onto one
end of the glass surface at a thickness that when compressed
will comply with 8.1.1.4. All substrates shall be at a tempera-
ture of 23 °C 6 2 °C (73.4 °F 6 3.6 °F). Apply the sealant at
the temperature specified by the sealant manufacturer.
NOTE 1—The template shall be made of a material of low thermal
8.1.1.3 Immediately after sealant application, place the
conductivity, such as wood or fiberglass.
aluminum substrate onto the sealant to form an overlap of
FIG. 2 Template
2 2
6.45 cm (1 in. ) (Fig. 1).
8.1.1.4 Using a template (Fig. 2), compress the overlayed
sealant to form a 3.18 mm ( ⁄8 in.) thick overlap (Fig. 3).
testing. Automatic timing devices and recorders may be used to 8.1.1.5 Remove excess sealant from the specimen with a hot
record the time it takes for the test specimens to shear apart. knife or spatula.
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