ASTM C736-00(2006)e1
(Test Method)Standard Test Method for Extension-Recovery and Adhesion of Latex Sealants
Standard Test Method for Extension-Recovery and Adhesion of Latex Sealants
SIGNIFICANCE AND USE
This test method evaluates the performance of a latex sealant in joints subjected to a limited amount of extension.
SCOPE
1.1 This test method covers a laboratory procedure for the determination of the extension-recovery and adhesion of latex sealants.
1.2 The values stated in SI (metric) units are to be regarded as the standard. The values given in parentheses are provided for information 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 and health practices and determine the applicability of regulatory limitations prior to use.Note 1
A related ISO standard is ISO 7389. Users should compare to determine how the ISO standard differs from this test method.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
´1
Designation:C736–00(Reapproved2006)
Standard Test Method for
Extension-Recovery and Adhesion of Latex Sealants
This standard is issued under the fixed designation C736; 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.
´ NOTE—Section 3.1 was updated editorially in May 2006.
1. Scope 4. Summary of Test Method
1.1 This test method covers a laboratory procedure for the 4.1 A joint of prescribed dimensions, between glass and
determination of the extension-recovery and adhesion of latex aluminum plates is filled with the sealant. After an aging
sealants. period, the joint width is increased 25 %, the force is removed,
1.2 The values stated in SI (metric) units are to be regarded and the specimen is permitted to recover. The amount of
as the standard. The values given in parentheses are provided recovery and the percent of adhesion loss are measured.
for information only.
5. Significance and Use
1.3 This standard does not purport to address all of the
5.1 This test method evaluates the performance of a latex
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- sealant in joints subjected to a limited amount of extension.
priate safety and health practices and determine the applica-
6. Apparatus
bility of regulatory limitations prior to use.
6.1 Extension Machine that can be operated at a steady rate
NOTE 1—Arelated ISO standard is ISO 7389. Users should compare to
of12.7mm/min(0.5in./min)andheldatconstantextensionfor
determine how the ISO standard differs from this test method.
5 min.
6.2 Aluminum Alloy Plates, six, anodized, 6.4 by 25.4 by
2. Referenced Documents
76.2 mm ( ⁄4 by 1 by 3 in.). Plates shall conform to Guide
2.1 ASTM Standards:
C1375.
C717 Terminology of Building Seals and Sealants
6.3 Glass Plates, six, 6.4 by 25.4 by 76.2 mm ( ⁄4 by1by
C1375 Guide for Substrates Used in Testing Building Seals
3 in.). Plates shall conform to Guide C1375.
and Sealants
3 6.4 U Shaped Spacers, six, as shown in Fig. 1(a) made of a
2.2 ISO Standard:
rigid, nonadhering material such as polyethylene, TFE-
ISO 7389 Building Construction–Sealants–Determination
fluorocarbon, or release-covered metal.
of Elastic Recovery
6.5 Metal C Clamps, twelve.
3. Terminology 6.6 Circulating Air Oven, capable of maintaining 50 6 1°C
(122 6 2°F).
3.1 Definitions—Refer to Terminology C717 for definitions
of the terms used in this test method.
7. Sampling
7.1 Take the sealant to be tested directly from the container
as commercially supplied by the manufacturer.
ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
Seals and Sealants and is the direct responsibility of Subcommittee C24.30 on
8. Test Specimens
Adhesion.
Current edition approved May 1, 2006. Published May 2006. Originally
8.1 Prepare a test specimen as follows: Apply a bead of
approved in 1972. Last previous edition approved in 2000 as C736 – 00. DOI:
1 1
sealant, 12.7 by 12.7 by 50.8 mm ( ⁄2 by ⁄2 by 2 in.) between
10.1520/C0736-00R06E01.
parallel glass and anodized aluminum plates as shown in Fig.
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
1(b), using rigid, nonadhering spacer bars. Use the C-clamps to
Standards volume information, refer to the standard’s Document Summary page on
hold the test assembly during the filling and subsequent curing
the ASTM website.
and handling of the specimens.
Available from theAmerican National Standards Institute, 11W. 42nd St., 13th
Floor, New York, NY 10036. 8.2 Prepare five additional specimens as described in 8.1.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
´1
C736–00 (2006)
then air dried prior to assembly of specimens.
9. Conditioning
9.1 Cure the six test specimens for 7 days at 23 6 1°C (73.4
6 2°F) and 50 6 5 % relative humidity, then for 7 days at 50
6 1°C (122 6 2°F).After the 14-day cure period condition the
specimens for 2 h at 23 6 1°C (73.4 6 2°F) and 50 6 5%
relative humidity.
10. Procedure
10.1 Remove the spacers (Fig. 1(c)) and insert each speci-
me
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.