ASTM C711-03
(Test Method)Standard Test Method for Low-Temperature Flexibility and Tenacity of One-Part, Elastomeric, Solvent-Release Type Sealants
Standard Test Method for Low-Temperature Flexibility and Tenacity of One-Part, Elastomeric, Solvent-Release Type Sealants
SIGNIFICANCE AND USE
This test method is not intended to simulate an actual use condition but it will give some indication of the elastomeric properties or flexibility of a building joint sealant at low temperature. It can serve to differentiate between elastomer-based sealants and sealants based on nonelastic binders that can harden or embrittle on aging and crack or lose adhesion when flexed at low temperature. In addition, it can aid in identifying sealants that have poor flexibility because they are overextended and contain a very low level of elastomeric binder as well as those sealants having binders that will embrittle at low temperature.
SCOPE
1.1 This test method covers determination of the low-temperature flexibility and tenacity of one-part, elastomeric, solvent-release type sealants after cyclic high- and low-temperature aging.
1.2 The subcommittee with jurisdiction is not aware of any similar ISO standard.
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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation:C711–03
Standard Test Method for
Low-Temperature Flexibility and Tenacity of One-Part,
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Elastomeric, Solvent-Release Type Sealants
This standard is issued under the fixed designation C711; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 5. Apparatus
1.1 This test method covers determination of the low- 5.1 Aluminum Panels, 3, thin, approximately 3 in. (76 mm)
temperature flexibility and tenacity of one-part, elastomeric, wide by 5 in. (127 mm) long by 0.012 in. (0.30 mm) thick.
solvent-release type sealants after cyclic high- and low- 5.2 Spatula, steel, with thin knife edge.
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temperature aging. 5.3 Template, rectangular, of steel or brass, ⁄8 in. (3.2 mm)
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1.2 The subcommittee with jurisdiction is not aware of any high, 1 by 3 ⁄4 in. (25 by 95 mm) inside and approximately 2
3
similar ISO standard. by 4 ⁄4 in. (51 by 121 mm) outside.
1.3 This standard does not purport to address all of the 5.4 Oven,forced-drafttype,havingatemperaturecontrolled
safety concerns, if any, associated with its use. It is the at 158 6 3.6°F (70 6 2°C).
responsibility of the user of this standard to establish appro- 5.5 Freezer Chest or Cold Box, having a controlled tem-
priate safety and health practices and determine the applica- perature of −10 6 5°F (−23 6 3°C).
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bility of regulatory limitations prior to use. 5.6 Mandrel or Rod, with a diameter of ⁄4 in. (6.4 mm),
with a suitable holder or rack to support it.
2. Referenced Documents
5.7 Methyl Ethyl Ketone, or similar solvent.
2.1 ASTM Standards:
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6. Sampling
C717 Terminology of Building Seals and Sealants
6.1 Take the test specimen from a previously unopened
3. Terminology
container as received from the sealant manufacturer.
3.1 Definitions—RefertoTerminologyC717fordefinitions
7. Test Specimens
of the following terms used in this Test Method: elastomer,
elastomeric, joint, sealant, solvent-release sealant. 7.1 Prepare three test specimens as follows:
7.1.1 Condition the sealant sample in the original closed
4. Significance and Use
container for at least5hat 73.4 6 3.6°F (23 6 2°C) and 50 6
4.1 This test method is not intended to simulate an actual
5% relative humidity.
useconditionbutitwillgivesomeindicationoftheelastomeric 7.1.2 Thoroughly clean template and aluminum panels with
properties or flexibility of a building joint sealant at low
solvent.
temperature. It can serve to differentiate between elastomer- 7.1.3 Center the template on the aluminum panel and
basedsealantsandsealantsbasedonnonelasticbindersthatcan
carefully fill it with compound, avoiding air pockets. Strike off
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harden or embrittle on aging and crack or lose adhesion when the surface of the compound flat to a uniform ⁄8-in. (3.2-mm)
flexed at low temperature. In addition, it can aid in identifying
thickness.
sealants that have poor flexibility because they are overex- 7.1.4 With the thin knife edge of the spatula, cut all around
tended and contain a very low level of elastomeric binder as
the outside edge of the compound and lift the template straight
well as those sealant
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