ASTM C736-00

Standard Test Method for Extension-Recovery and Adhesion of Latex Sealants

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 problems, 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.

General Information

• Status: Historical
• Publication Date: 09-Jan-2000
• ICS: 91.100.50 - Binders. Sealing materials
• Technical Committee: C24 - Building Seals and Sealants
• Drafting Committee: C24.30 - Adhesion

Relations

• Replaced By: ASTM C736-00(2006)e1 - Standard Test Method for Extension-Recovery and Adhesion of Latex Sealants
• Effective Date: 01-May-2006
• Referred By: ASTM C834-17(2023) - Standard Specification for Latex Sealants
• Effective Date: 10-Jan-2000
• Referred By: ASTM C1021-08(2023) - Standard Practice for Laboratories Engaged in Testing of Building Sealants
• Effective Date: 10-Jan-2000

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Designation:C736–00
Standard Test Method for
Extension-Recovery and Adhesion of Latex Sealants
This standard is issued under the fixed designation C 736; 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 period, the joint width is increased 25 %, the force is removed,
and the specimen is permitted to recover. The amount of
1.1 This test method covers a laboratory procedure for the
recovery and the percent of adhesion loss are measured.
determination of the extension-recovery and adhesion of latex
sealants.
5. Significance and Use
1.2 The values stated in SI (metric) units are to be regarded
5.1 This test method evaluates the performance of a latex
as the standard. The values given in parentheses are provided
sealant in joints subjected to a limited amount of extension.
for information only.
1.3 This standard does not purport to address all of the
6. Apparatus
safety concerns, if any, associated with its use. It is the
6.1 Extension Machine that can be operated at a steady rate
responsibility of the user of this standard to establish appro-
of12.7mm/min(0.5in./min)andheldatconstantextensionfor
priate safety and health practices and determine the applica-
5 min.
bility of regulatory limitations prior to use.
6.2 Aluminum Alloy Plates, six, anodized, 6.4 by 25.4 by
NOTE 1—Arelated ISO standard is ISO 7389. Users should compare to 1
76.2 mm ( ⁄4 by 1 by 3 in.). Plates shall conform to Guide
determine how the ISO standard differs from this test method.
C 1375.
6.3 Glass Plates, six, 6.4 by 25.4 by 76.2 mm ( ⁄4 by1by
2. Referenced Documents
3 in.). Plates shall conform to Guide C 1375.
2.1 ASTM Standards:
6.4 U Shaped Spacers, six, as shown in Fig. 1(a) made of a
C 717 Terminology of Building Seals and Sealants
rigid, nonadhering material such as polyethylene, TFE-
C 1375 Guide for Substrates Used inTesting Building Seals
fluorocarbon, or release-covered metal.
and Sealants
6.5 Metal C Clamps, twelve.
2.2 ISO Standard:
6.6 Circulating Air Oven, capable of maintaining 50 6 1°C
ISO 7389 Building Construction–Sealants–Determination
(122 6 2°F).
of Elastic Recovery
7. Sampling
3. Terminology
7.1 Take the sealant to be tested directly from the container
3.1 Definitions—RefertoTerminologyC 717fordefinitions
as commercially supplied by the manufacturer.
of the following terms used in this test method: adhesive
failure, bead, joint, latex sealant, sealant.
8. Test Specimens
8.1 Prepare a test specimen as follows: Apply a bead of
4. Summary of Test Method
1 1
sealant, 12.7 by 12.7 by 50.8 mm ( ⁄2 by ⁄2 by 2 in.) between
4.1 A joint of prescribed dimensions, between glass and
parallel glass and anodized aluminum plates as shown in Fig.
aluminum plates is filled with the sealant. After an aging
1(b), using rigid, nonadhering spacer bars. Use the C-clamps to
hold the test assembly during the filling and subsequent curing
1 and handling of the specimens.
ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
Seals and Sealants and is the direct responsibility of Subcommittee C24.30 on 8.2 Prepare five additional specimens as described in 8.1.
Adhesion.
NOTE 2—The glass and aluminum plates shall be cleaned with methyl
Current edition approved Jan. 10, 2000. Published March 2000. Originally
ethyl ketone or similar solvent followed by a thorough cleaning with a
published as C 736 – 72. Last previous edition C 736 – 93.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or detergent solution and a final rinse with distilled or deionized water and
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
then air dried prior to assembly of specimens.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Available from theAmerican National Standards Institute, 11W. 42nd St., 13th
Floor, New York, NY 10036.
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C736–00
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°
...