ASTM C1737-23

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Designation: C1737 − 22 C1737 − 23
Standard Guide for
Evaluating Temperature Effects to Aerosol Foam Sealant
During and After Dispensing
This standard is issued under the fixed designation C1737; 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
1.1 This guide covers the general effects of temperature from the aerosol foam sealant (either polyurethane or latex types) under
the use temperatures.
1.2 The guide is intended to estimate the observed product dispensing characteristics and foam quality of aerosol foam dispensed
or cured, or both, at specific temperatures and standard conditions.
1.3 Such foam sealants are primarily intended to reduce air movement in and out of building enclosures.
1.4 Currently two main foam sealant types are applicable to this standard: single component polyurethane and latex.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 There are no other known test methods specific for measuring the product temperature range for aerosol foam sealant.
1.7 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.
1.8 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.
2. Referenced Documents
2.1 ASTM Standards:
C717 Terminology of Building Seals and Sealants
C1620 Specification for Aerosol Polyurethane and Aerosol Latex Foam Sealants
C1806 Test Method for Measuring the Flow Rate of Aerosol Foam Sealants
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
This guide is under the jurisdiction of ASTM Committee C24 on Building Seals and Sealants and is the direct responsibility of Subcommittee C24.61 on Aerosol Foam
Sealants.
Current edition approved Aug. 1, 2022June 15, 2023. Published September 2022August 2023. Originally approved in 2010. Last previous edition approved in 20162022
as C1737C1737 – 22.–16. DOI: 10.1520/C1737-22.10.1520/C1737-23.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
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C1737 − 23
3.1.1 cure temperature—set temperature of the chamber where the foam sealant cures. Also called the ambient air temperature for
purposes of this guide.
3.1.2 flow rate—see Test Method C1806.
3.1.3 friability—the property of a cured or semi-cured foamed cellular material which permanently deforms and crumbles after a
light finger force is applied to the material surface.
3.1.4 product temperature—temperature of the foam sealant in its original container after 24 h at the manufacturer’s recommended
test temperature.
3.1.5 product use temperature—the aerosol can product temperature itself and the ambient air temperature during the cure.
3.1.6 standard conditions—see Terminology in C717.
3.1.7 tack free time—see Specification C1620.
4. Summary of Guide
4.1 Procedure—Select the desired temperatures to measure. A product for example could be tested at a product temperature of
5 °C, and a cure temperature (ambient air temperature) of 0 °C. This comprises the product use temperature.
4.1.1 Specimens from a completely filled aerosol container’s are dispensed at specified size and as bead segments.
4.1.2 Product temperature is maintained at selected product temperature prior to testing at the selected cure temperature (which
may be the same or different than the product temperature).
4.1.3 Foam products are evaluated for flow rate, tack free time, friability, and skin and cell appearance as described herein.
5. Significance and Use
5.1 This guide is not intended to measure the precise temperature range for dispensing and curing product under all the possible
substrate and environmental factors but to provide a basis for benchmarking a foam sealant product under specific laboratory
conditions.
5.2 The product user is encouraged to evaluate each application and determine suitability for actual use.
6. Apparatus
6.1 Two test chambers, capable of controlling temperature from –15 to 45°C within 62°C.–15 °C to 45 °C within 62 °C.
7. Test Specimens and Substrates
7.1 Condition and prepare all test products at selected product conditions.
7.2 Condition and prepare all test substrates at selected curing conditions.
7.3 For each product tested it is essential to follow the manufacturer’s label directions and to use the dispenser supplied with the
product. One full aerosol can of product is needed for each test product use temperature.
7.4 Smooth Kraft Product shall be applied to smooth kraft brown wrapping paper, without coatings.
Kraft paper – higher strength paper – termed “kraft paper” from manufacturing practice.
C1737 − 23
8. Conditioning
8.1 Condition the full aerosol sealant foam sealant cans and substrates under standard conditions prior to the selected test chamber
conditioning (see 9.1 and 9.2).
9. Procedure
9.1 Condition substrates at the selected cure temperature for 24 h.
9.2 Condition the full aerosol foam sealant cans at the selected product temperature for 24 h.
9.3 Weigh the full aerosol foam sealant can without the cap but with the dispensing mechanism attached and record the starting
weight.
9.4 Shake the can vigorously for 30 s or as recommended in the product’s instructions.
9.5 Immediately dispense a 1 cm diameter by 8 cm
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